215652215122 has 8 divisors (see below), whose sum is σ = 323946455472. Its totient is φ = 107670063300.

The previous prime is 215652215087. The next prime is 215652215131. The reversal of 215652215122 is 221512256512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78020404 + ... + 78023167.

It is an arithmetic number, because the mean of its divisors is an integer number (40493306934).

Almost surely, 2^215652215122 is an apocalyptic number.

215652215122 is a deficient number, since it is larger than the sum of its proper divisors (108294240350).

215652215122 is a wasteful number, since it uses less digits than its factorization.

215652215122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156044264.

The product of its digits is 24000, while the sum is 34.

The spelling of 215652215122 in words is "two hundred fifteen billion, six hundred fifty-two million, two hundred fifteen thousand, one hundred twenty-two".