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12220210211 = 112921320961
BaseRepresentation
bin10110110000110000…
…11001110000100011
31011112122110222222012
423120120121300203
5200011333211321
65340333303135
7611554034006
oct133030316043
934478428865
1012220210211
115200a98890
122450634aab
1311c9976b21
1483cd8153d
154b7c6d05b
hex2d8619c23

12220210211 has 12 divisors (see below), whose sum is σ = 13806694824. Its totient is φ = 10726195200.

The previous prime is 12220210207. The next prime is 12220210229. The reversal of 12220210211 is 11201202221.

It is not a de Polignac number, because 12220210211 - 22 = 12220210207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220210241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 651230 + ... + 669731.

It is an arithmetic number, because the mean of its divisors is an integer number (1150557902).

Almost surely, 212220210211 is an apocalyptic number.

12220210211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12220210211 is a deficient number, since it is larger than the sum of its proper divisors (1586484613).

12220210211 is a wasteful number, since it uses less digits than its factorization.

12220210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321030 (or 1321001 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12220210211 its reverse (11201202221), we get a palindrome (23421412432).

The spelling of 12220210211 in words is "twelve billion, two hundred twenty million, two hundred ten thousand, two hundred eleven".

Divisors: 1 11 29 319 841 9251 1320961 14530571 38307869 421386559 1110928201 12220210211