12213063920 has 40 divisors (see below), whose sum is σ = 28453771104. Its totient is φ = 4875178752.

The previous prime is 12213063901. The next prime is 12213063923. The reversal of 12213063920 is 2936031221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213063923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117779 + ... + 195698.

Almost surely, 2^12213063920 is an apocalyptic number.

12213063920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213063920 is an abundant number, since it is smaller than the sum of its proper divisors (16240707184).

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

12213063920 is a wasteful number, since it uses less digits than its factorization.

12213063920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313977 (or 313971 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 12213063920 in words is "twelve billion, two hundred thirteen million, sixty-three thousand, nine hundred twenty".