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12220013211 = 375332573371
BaseRepresentation
bin10110110000101111…
…01001101010011011
31011112122002222201220
423120113221222123
5200011310410321
65340325143123
7611552253450
oct133027515233
934478088656
1012220013211
11520097387a
12245055aaa3
1311c9908263
1483cd2d827
154b7c2e9c6
hex2d85e9a9b

12220013211 has 32 divisors (see below), whose sum is σ = 18983766528. Its totient is φ = 6846977280.

The previous prime is 12220013189. The next prime is 12220013213. The reversal of 12220013211 is 11231002221.

It is not a de Polignac number, because 12220013211 - 26 = 12220013147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12220013213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3623356 + ... + 3626726.

It is an arithmetic number, because the mean of its divisors is an integer number (593242704).

Almost surely, 212220013211 is an apocalyptic number.

12220013211 is a deficient number, since it is larger than the sum of its proper divisors (6763753317).

12220013211 is a wasteful number, since it uses less digits than its factorization.

12220013211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12220013211 its reverse (11231002221), we get a palindrome (23451015432).

The spelling of 12220013211 in words is "twelve billion, two hundred twenty million, thirteen thousand, two hundred eleven".

Divisors: 1 3 7 21 53 159 371 1113 3257 3371 9771 10113 22799 23597 68397 70791 172621 178663 517863 535989 1208347 1250641 3625041 3751923 10979347 32938041 76855429 230566287 581905391 1745716173 4073337737 12220013211