12212531255 has 16 divisors (see below), whose sum is σ = 14703344640. Its totient is φ = 9737877408.

The previous prime is 12212531249. The next prime is 12212531267. The reversal of 12212531255 is 55213521221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212531255 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088626 + ... + 2094464.

It is an arithmetic number, because the mean of its divisors is an integer number (918959040).

Almost surely, 2^12212531255 is an apocalyptic number.

12212531255 is a deficient number, since it is larger than the sum of its proper divisors (2490813385).

12212531255 is an equidigital number, since it uses as much as digits as its factorization.

12212531255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150.

The product of its digits is 6000, while the sum is 29.

The spelling of 12212531255 in words is "twelve billion, two hundred twelve million, five hundred thirty-one thousand, two hundred fifty-five".