12215524120 has 32 divisors (see below), whose sum is σ = 27793756800. Its totient is φ = 4831307008.

The previous prime is 12215524093. The next prime is 12215524121. The reversal of 12215524120 is 2142551221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215524121) 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, 1712104 + ... + 1719223.

It is an arithmetic number, because the mean of its divisors is an integer number (868554900).

Almost surely, 2^12215524120 is an apocalyptic number.

12215524120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12215524120 is an abundant number, since it is smaller than the sum of its proper divisors (15578232680).

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

12215524120 is a wasteful number, since it uses less digits than its factorization.

12215524120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431427 (or 3431423 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 12215524120 in words is "twelve billion, two hundred fifteen million, five hundred twenty-four thousand, one hundred twenty".