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12222010121212 = 2217299359600401
BaseRepresentation
bin1011000111011010100010…
…0100100101101111111100
31121021102010220021210110101
42301312220210211233330
53100221134042334322
641554414113250444
72401003542631063
oct261665044455774
947242126253411
1012222010121212
1139923640a4921
12145485a563a24
136a86b8995808
14303796d171da
15162dc8822327
hexb1da8925bfc

12222010121212 has 24 divisors (see below), whose sum is σ = 22646779182720. Its totient is φ = 5751505382400.

The previous prime is 12222010121063. The next prime is 12222010121249. The reversal of 12222010121212 is 21212101022221.

It is a self number, because there is not a number n which added to its sum of digits gives 12222010121212.

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, 20056212 + ... + 20656612.

It is an arithmetic number, because the mean of its divisors is an integer number (943615799280).

Almost surely, 212222010121212 is an apocalyptic number.

It is an amenable number.

12222010121212 is a deficient number, since it is larger than the sum of its proper divisors (10424769061508).

12222010121212 is a wasteful number, since it uses less digits than its factorization.

12222010121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899781 (or 899779 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12222010121212 its reverse (21212101022221), we get a palindrome (33434111143433).

The spelling of 12222010121212 in words is "twelve trillion, two hundred twenty-two billion, ten million, one hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 299359 598718 600401 1197436 1200802 2401604 5089103 10178206 10206817 20356412 20413634 40827268 179735442959 359470885918 718941771836 3055502530303 6111005060606 12222010121212