12212119956 has 96 divisors (see below), whose sum is σ = 29334614400. Its totient is φ = 3952834560.

The previous prime is 12212119939. The next prime is 12212119957. The reversal of 12212119956 is 65991121221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212119957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29858280 + ... + 29858688.

It is an arithmetic number, because the mean of its divisors is an integer number (305568900).

Almost surely, 2^12212119956 is an apocalyptic number.

It is an amenable number.

12212119956 is an abundant number, since it is smaller than the sum of its proper divisors (17122494444).

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

12212119956 is a wasteful number, since it uses less digits than its factorization.

12212119956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 887 counting only the distinct ones).

The product of its digits is 19440, while the sum is 39.

The spelling of 12212119956 in words is "twelve billion, two hundred twelve million, one hundred nineteen thousand, nine hundred fifty-six".