215021056254122 has 8 divisors (see below), whose sum is σ = 323582175862176. Its totient is φ = 107160330966732.

The previous prime is 215021056254089. The next prime is 215021056254131. The reversal of 215021056254122 is 221452650120512.

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, 175098579398 + ... + 175098580625.

It is an arithmetic number, because the mean of its divisors is an integer number (40447771982772).

Almost surely, 2^{215021056254122} is an apocalyptic number.

215021056254122 is a deficient number, since it is larger than the sum of its proper divisors (108561119608054).

215021056254122 is a wasteful number, since it uses less digits than its factorization.

215021056254122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350197160332.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 215021056254122 in words is "two hundred fifteen trillion, twenty-one billion, fifty-six million, two hundred fifty-four thousand, one hundred twenty-two".