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212231132212 = 22117961056137
BaseRepresentation
bin1100010110100111110…
…1100001010000110100
3202021210202022120122011
43011221331201100310
511434122132212322
6241255253414004
721222166600411
oct3055175412064
9667722276564
10212231132212
1182008a39930
123516b93a304
131702331b408
14a3b46a7108
1557c214d677
hex3169f61434

212231132212 has 24 divisors (see below), whose sum is σ = 410297247360. Its totient is φ = 95247572160.

The previous prime is 212231132209. The next prime is 212231132221.

212231132212 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30524593 + ... + 30531544.

It is an arithmetic number, because the mean of its divisors is an integer number (17095718640).

Almost surely, 2212231132212 is an apocalyptic number.

212231132212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212231132212 is a deficient number, since it is larger than the sum of its proper divisors (198066115148).

212231132212 is a wasteful number, since it uses less digits than its factorization.

212231132212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61056231 (or 61056229 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

It can be divided in two parts, 212231 and 132212, that added together give a palindrome (344443).

The spelling of 212231132212 in words is "two hundred twelve billion, two hundred thirty-one million, one hundred thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 79 158 316 869 1738 3476 61056137 122112274 244224548 671617507 1343235014 2686470028 4823434823 9646869646 19293739292 53057783053 106115566106 212231132212