12270643252 has 24 divisors (see below), whose sum is σ = 25063444224. Its totient is φ = 5146956192.

The previous prime is 12270643247. The next prime is 12270643261. The reversal of 12270643252 is 25234607221.

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, 4660783 + ... + 4663414.

It is an arithmetic number, because the mean of its divisors is an integer number (1044310176).

Almost surely, 2^12270643252 is an apocalyptic number.

It is an amenable number.

12270643252 is an abundant number, since it is smaller than the sum of its proper divisors (12792800972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12270643252 is a wasteful number, since it uses less digits than its factorization.

12270643252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9324255 (or 9324253 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 12270643252 in words is "twelve billion, two hundred seventy million, six hundred forty-three thousand, two hundred fifty-two".