122915809275 has 96 divisors (see below), whose sum is σ = 234756403200. Its totient is φ = 55585958400.

The previous prime is 122915809273. The next prime is 122915809319. The reversal of 122915809275 is 572908519221.

It is not a de Polignac number, because 122915809275 - 2¹ = 122915809273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122915809273) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 47438230 + ... + 47440820.

It is an arithmetic number, because the mean of its divisors is an integer number (2445379200).

Almost surely, 2^122915809275 is an apocalyptic number.

122915809275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122915809275 is a deficient number, since it is larger than the sum of its proper divisors (111840593925).

122915809275 is a wasteful number, since it uses less digits than its factorization.

122915809275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549 (or 3544 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 51.

The spelling of 122915809275 in words is "one hundred twenty-two billion, nine hundred fifteen million, eight hundred nine thousand, two hundred seventy-five".