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12011220212 = 2213072297479
BaseRepresentation
bin10110010111110110…
…01010110011110100
31011000002020012120212
423023323022303310
5144044333021322
65303510044552
7603435454505
oct131373126364
934002205525
1012011220212
115104025582
1223b2649758
1311955928c4
1481d2dcbac
154a473a0e2
hex2cbecacf4

12011220212 has 12 divisors (see below), whose sum is σ = 21035726880. Its totient is φ = 6001012536.

The previous prime is 12011220197. The next prime is 12011220223. The reversal of 12011220212 is 21202211021.

Adding to 12011220212 its reverse (21202211021), we get a palindrome (33213431233).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143512 + ... + 1153967.

It is an arithmetic number, because the mean of its divisors is an integer number (1752977240).

Almost surely, 212011220212 is an apocalyptic number.

It is an amenable number.

12011220212 is a deficient number, since it is larger than the sum of its proper divisors (9024506668).

12011220212 is a wasteful number, since it uses less digits than its factorization.

12011220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298790 (or 2298788 counting only the distinct ones).

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

The spelling of 12011220212 in words is "twelve billion, eleven million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 1307 2614 5228 2297479 4594958 9189916 3002805053 6005610106 12011220212