122415516 has 24 divisors (see below), whose sum is σ = 317373840. Its totient is φ = 40805136.

The previous prime is 122415481. The next prime is 122415541. The reversal of 122415516 is 615514221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 122415516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566631 + ... + 566846.

It is an arithmetic number, because the mean of its divisors is an integer number (13223910).

Almost surely, 2^122415516 is an apocalyptic number.

It is an amenable number.

122415516 is an abundant number, since it is smaller than the sum of its proper divisors (194958324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122415516 is a wasteful number, since it uses less digits than its factorization.

122415516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133490 (or 1133482 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 122415516 is about 11064.1545542350. The cubic root of 122415516 is about 496.5299951758.

Adding to 122415516 its reverse (615514221), we get a palindrome (737929737).

The spelling of 122415516 in words is "one hundred twenty-two million, four hundred fifteen thousand, five hundred sixteen".