12207261055 has 24 divisors (see below), whose sum is σ = 16124030496. Its totient is φ = 8865574080.

The previous prime is 12207261047. The next prime is 12207261083. The reversal of 12207261055 is 55016270221.

It is not a de Polignac number, because 12207261055 - 2³ = 12207261047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429702 + ... + 457228.

It is an arithmetic number, because the mean of its divisors is an integer number (671834604).

Almost surely, 2^12207261055 is an apocalyptic number.

12207261055 is a deficient number, since it is larger than the sum of its proper divisors (3916769441).

12207261055 is a wasteful number, since it uses less digits than its factorization.

12207261055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28287 (or 28276 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 12207261055 in words is "twelve billion, two hundred seven million, two hundred sixty-one thousand, fifty-five".