122215642015 has 16 divisors (see below), whose sum is σ = 153871508736. Its totient is φ = 93067430400.

The previous prime is 122215642001. The next prime is 122215642033. The reversal of 122215642015 is 510246512221.

It is not a de Polignac number, because 122215642015 - 2¹¹ = 122215639967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6453562 + ... + 6472471.

It is an arithmetic number, because the mean of its divisors is an integer number (9616969296).

Almost surely, 2^122215642015 is an apocalyptic number.

122215642015 is a deficient number, since it is larger than the sum of its proper divisors (31655866721).

122215642015 is a wasteful number, since it uses less digits than its factorization.

122215642015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12926130.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 122215642015 in words is "one hundred twenty-two billion, two hundred fifteen million, six hundred forty-two thousand, fifteen".