12212585611772 has 72 divisors (see below), whose sum is σ = 26767216377216. Its totient is φ = 4773143329344.

The previous prime is 12212585611771. The next prime is 12212585611817. The reversal of 12212585611772 is 27711658521221.

It is a self number, because there is not a number n which added to its sum of digits gives 12212585611772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212585611771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15154538 + ... + 15940049.

It is an arithmetic number, because the mean of its divisors is an integer number (371766894128).

Almost surely, 2^{12212585611772} is an apocalyptic number.

It is an amenable number.

12212585611772 is an abundant number, since it is smaller than the sum of its proper divisors (14554630765444).

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

12212585611772 is a wasteful number, since it uses less digits than its factorization.

12212585611772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31094707 (or 31094692 counting only the distinct ones).

The product of its digits is 940800, while the sum is 50.

The spelling of 12212585611772 in words is "twelve trillion, two hundred twelve billion, five hundred eighty-five million, six hundred eleven thousand, seven hundred seventy-two".