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12220112302212 = 22316377315315279
BaseRepresentation
bin1011000111010011011101…
…1100111111000010000100
31121021020020122012121012210
42301310313130333002010
53100203242222132322
641553501520343420
72400605526504063
oct261646734770204
947236218177183
1012220112302212
11399157a8a9371
12145440aa74b70
136a84757468a9
14303656c5a1da
15162d16de570c
hexb1d3773f084

12220112302212 has 96 divisors (see below), whose sum is σ = 28749846343680. Its totient is φ = 4039737287040.

The previous prime is 12220112302207. The next prime is 12220112302241. The reversal of 12220112302212 is 21220321102221.

It is a super-2 number, since 2×122201123022122 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2314850989 + ... + 2314856267.

It is an arithmetic number, because the mean of its divisors is an integer number (299477566080).

Almost surely, 212220112302212 is an apocalyptic number.

12220112302212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220112302212 is an abundant number, since it is smaller than the sum of its proper divisors (16529734041468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12220112302212 is a wasteful number, since it uses less digits than its factorization.

12220112302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7753 (or 7751 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12220112302212 its reverse (21220321102221), we get a palindrome (33440433404433).

The spelling of 12220112302212 in words is "twelve trillion, two hundred twenty billion, one hundred twelve million, three hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 163 326 489 652 773 978 1531 1546 1956 2319 3062 3092 4593 4638 5279 6124 9186 9276 10558 15837 18372 21116 31674 63348 125999 249553 251998 377997 499106 503996 748659 755994 860477 998212 1183463 1497318 1511988 1720954 2366926 2581431 2994636 3441908 3550389 4080667 4733852 5162862 7100778 8082149 8161334 10325724 12242001 14201556 16164298 16322668 24246447 24484002 32328596 48492894 48968004 96985788 192904469 385808938 578713407 665148721 771617876 1157426814 1317390287 1330297442 1995446163 2314853628 2634780574 2660594884 3952170861 3990892326 5269561148 6247501177 7904341722 7981784652 12495002354 15808683444 18742503531 24990004708 37485007062 74970014124 1018342691851 2036685383702 3055028075553 4073370767404 6110056151106 12220112302212