215412213125 has 40 divisors (see below), whose sum is σ = 272942630400. Its totient is φ = 169926120000.

The previous prime is 215412213113. The next prime is 215412213161. The reversal of 215412213125 is 521312214512.

It is not a de Polignac number, because 215412213125 - 2¹⁸ = 215411950981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44978231 + ... + 44983019.

It is an arithmetic number, because the mean of its divisors is an integer number (6823565760).

Almost surely, 2^215412213125 is an apocalyptic number.

215412213125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215412213125 is a deficient number, since it is larger than the sum of its proper divisors (57530417275).

215412213125 is an frugal number, since it uses more digits than its factorization.

215412213125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5799 (or 5784 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

Adding to 215412213125 its reverse (521312214512), we get a palindrome (736724427637).

The spelling of 215412213125 in words is "two hundred fifteen billion, four hundred twelve million, two hundred thirteen thousand, one hundred twenty-five".