215520211412200 has 48 divisors (see below), whose sum is σ = 501187364768160. Its totient is φ = 86190385944000.

The previous prime is 215520211412183. The next prime is 215520211412221. The reversal of 215520211412200 is 2214112025512.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109639746 + ... + 111588145.

It is an arithmetic number, because the mean of its divisors is an integer number (10441403432670).

Almost surely, 2^{215520211412200} is an apocalyptic number.

215520211412200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215520211412200 is an abundant number, since it is smaller than the sum of its proper divisors (285667153355960).

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

215520211412200 is a wasteful number, since it uses less digits than its factorization.

215520211412200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221232778 (or 221232769 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 215520211412200 its reverse (2214112025512), we get a palindrome (217734323437712).

The spelling of 215520211412200 in words is "two hundred fifteen trillion, five hundred twenty billion, two hundred eleven million, four hundred twelve thousand, two hundred".