12213012120 has 32 divisors (see below), whose sum is σ = 36639036720. Its totient is φ = 3256803200.

The previous prime is 12213012107. The next prime is 12213012131. The reversal of 12213012120 is 2121031221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12213012120.

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, 50887431 + ... + 50887670.

Almost surely, 2^12213012120 is an apocalyptic number.

12213012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213012120 is an abundant number, since it is smaller than the sum of its proper divisors (24426024600).

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

12213012120 is a wasteful number, since it uses less digits than its factorization.

12213012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101775115 (or 101775111 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12213012120 its reverse (2121031221), we get a palindrome (14334043341).

The spelling of 12213012120 in words is "twelve billion, two hundred thirteen million, twelve thousand, one hundred twenty".