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12113202220 = 2257329926227
BaseRepresentation
bin10110100100000000…
…01100110000101100
31011021012010102121021
423102000030300230
5144301434432340
65321551543524
7606114343240
oct132200146054
934235112537
1012113202220
115156650129
12242082aba4
1311b074b5a2
1482ca88420
154ad681e4a
hex2d200cc2c

12113202220 has 48 divisors (see below), whose sum is σ = 29081606400. Its totient is φ = 4151680704.

The previous prime is 12113202209. The next prime is 12113202223. The reversal of 12113202220 is 2220231121.

It is a happy number.

It is a super-2 number, since 2×121132022202 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12113202194 and 12113202203.

It is not an unprimeable number, because it can be changed into a prime (12113202223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448747 + ... + 474973.

It is an arithmetic number, because the mean of its divisors is an integer number (605866800).

Almost surely, 212113202220 is an apocalyptic number.

12113202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12113202220 is an abundant number, since it is smaller than the sum of its proper divisors (16968404180).

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

12113202220 is a wasteful number, since it uses less digits than its factorization.

12113202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29542 (or 29540 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12113202220 its reverse (2220231121), we get a palindrome (14333433341).

The spelling of 12113202220 in words is "twelve billion, one hundred thirteen million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 3299 6598 13196 16495 23093 26227 32990 46186 52454 65980 92372 104908 115465 131135 183589 230930 262270 367178 461860 524540 734356 917945 1835890 3671780 86522873 173045746 346091492 432614365 605660111 865228730 1211320222 1730457460 2422640444 3028300555 6056601110 12113202220