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12220100020212 = 2237257566059849
BaseRepresentation
bin1011000111010011011010…
…1110001000011111110100
31121021020012210002121110220
42301310312232020133310
53100203231101121322
641553500401214340
72400605320221360
oct261646656103764
947236183077426
1012220100020212
11399157397a757
1214544069313b0
136a8473036436
143036553802a0
15162d15cbb55c
hexb1d36b887f4

12220100020212 has 48 divisors (see below), whose sum is σ = 32713730851200. Its totient is φ = 3477871706112.

The previous prime is 12220100020211. The next prime is 12220100020243. The reversal of 12220100020212 is 21202000102221.

It is a junction number, because it is equal to n+sod(n) for n = 12220100020191 and 12220100020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220100020211) 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, 283008337 + ... + 283051512.

It is an arithmetic number, because the mean of its divisors is an integer number (681536059400).

Almost surely, 212220100020212 is an apocalyptic number.

12220100020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220100020212 is an abundant number, since it is smaller than the sum of its proper divisors (20493630830988).

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

12220100020212 is a wasteful number, since it uses less digits than its factorization.

12220100020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566060120 (or 566060118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12220100020212 its reverse (21202000102221), we get a palindrome (33422100122433).

The spelling of 12220100020212 in words is "twelve trillion, two hundred twenty billion, one hundred million, twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 257 514 771 1028 1542 1799 3084 3598 5397 7196 10794 21588 566059849 1132119698 1698179547 2264239396 3396359094 3962418943 6792718188 7924837886 11887256829 15849675772 23774513658 47549027316 145477381193 290954762386 436432143579 581909524772 872864287158 1018341668351 1745728574316 2036683336702 3055025005053 4073366673404 6110050010106 12220100020212