101121322015 has 16 divisors (see below), whose sum is σ = 138693344832. Its totient is φ = 69333997824.

The previous prime is 101121321967. The next prime is 101121322039. The reversal of 101121322015 is 510223121101.

It is not a de Polignac number, because 101121322015 - 2¹⁷ = 101121190943 is a prime.

It is a super-2 number, since 2×101121322015² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101121321983 and 101121322001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273987 + ... + 526603.

It is an arithmetic number, because the mean of its divisors is an integer number (8668334052).

Almost surely, 2^101121322015 is an apocalyptic number.

101121322015 is a deficient number, since it is larger than the sum of its proper divisors (37572022817).

101121322015 is a wasteful number, since it uses less digits than its factorization.

101121322015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264066.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 101121322015 its reverse (510223121101), we get a palindrome (611344443116).

The spelling of 101121322015 in words is "one hundred one billion, one hundred twenty-one million, three hundred twenty-two thousand, fifteen".