12355526212 has 24 divisors (see below), whose sum is σ = 22372119000. Its totient is φ = 5963575296.

The previous prime is 12355526167. The next prime is 12355526231. The reversal of 12355526212 is 21262555321.

It can be written as a sum of positive squares in 4 ways, for example, as 5588160516 + 6767365696 = 74754^2 + 82264^2 .

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, 1078788 + ... + 1090180.

It is an arithmetic number, because the mean of its divisors is an integer number (932171625).

Almost surely, 2^12355526212 is an apocalyptic number.

It is an amenable number.

12355526212 is a deficient number, since it is larger than the sum of its proper divisors (10016592788).

12355526212 is a wasteful number, since it uses less digits than its factorization.

12355526212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20775 (or 20773 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The spelling of 12355526212 in words is "twelve billion, three hundred fifty-five million, five hundred twenty-six thousand, two hundred twelve".