2121101122315 has 48 divisors (see below), whose sum is σ = 2983187533824. Its totient is φ = 1418248016640.

The previous prime is 2121101122291. The next prime is 2121101122333. The reversal of 2121101122315 is 5132211011212.

It is not a de Polignac number, because 2121101122315 - 2⁷ = 2121101122187 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126074994 + ... + 126091816.

It is an arithmetic number, because the mean of its divisors is an integer number (62149740288).

Almost surely, 2^{2121101122315} is an apocalyptic number.

2121101122315 is a deficient number, since it is larger than the sum of its proper divisors (862086411509).

2121101122315 is a wasteful number, since it uses less digits than its factorization.

2121101122315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19060 (or 19019 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 2121101122315 its reverse (5132211011212), we get a palindrome (7253312133527).

The spelling of 2121101122315 in words is "two trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, three hundred fifteen".