122215331 has 16 divisors (see below), whose sum is σ = 143810304. Its totient is φ = 101685024.

The previous prime is 122215319. The next prime is 122215339. The reversal of 122215331 is 133512221.

It is a de Polignac number, because none of the positive numbers 2^k-122215331 is a prime.

It is a super-2 number, since 2×122215331² = 29873174262879122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122215339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50900 + ... + 53246.

It is an arithmetic number, because the mean of its divisors is an integer number (8988144).

Almost surely, 2^122215331 is an apocalyptic number.

122215331 is a deficient number, since it is larger than the sum of its proper divisors (21594973).

122215331 is a wasteful number, since it uses less digits than its factorization.

122215331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570.

The product of its digits is 360, while the sum is 20.

The square root of 122215331 is about 11055.1042962063. The cubic root of 122215331 is about 496.2591904851.

Adding to 122215331 its reverse (133512221), we get a palindrome (255727552).

The spelling of 122215331 in words is "one hundred twenty-two million, two hundred fifteen thousand, three hundred thirty-one".