122215499 has 12 divisors (see below), whose sum is σ = 148376784. Its totient is φ = 98592384.

The previous prime is 122215493. The next prime is 122215501. The reversal of 122215499 is 994512221.

It is not a de Polignac number, because 122215499 - 2¹² = 122211403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122215493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28184 + ... + 32229.

It is an arithmetic number, because the mean of its divisors is an integer number (12364732).

Almost surely, 2^122215499 is an apocalyptic number.

122215499 is a deficient number, since it is larger than the sum of its proper divisors (26161285).

122215499 is an equidigital number, since it uses as much as digits as its factorization.

122215499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60454 (or 60437 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 122215499 is about 11055.1118945038. Note that the first 3 decimals coincide. The cubic root of 122215499 is about 496.2594178748.

The spelling of 122215499 in words is "one hundred twenty-two million, two hundred fifteen thousand, four hundred ninety-nine".