12212188072 has 48 divisors (see below), whose sum is σ = 26687655360. Its totient is φ = 5223699936.

The previous prime is 12212188067. The next prime is 12212188073. The reversal of 12212188072 is 27088121221.

It is not an unprimeable number, because it can be changed into a prime (12212188073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175233 + ... + 234799.

It is an arithmetic number, because the mean of its divisors is an integer number (555992820).

Almost surely, 2^12212188072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212188072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13343827680).

12212188072 is an abundant number, since it is smaller than the sum of its proper divisors (14475467288).

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

12212188072 is a wasteful number, since it uses less digits than its factorization.

12212188072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60110 (or 60099 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 34.

The spelling of 12212188072 in words is "twelve billion, two hundred twelve million, one hundred eighty-eight thousand, seventy-two".