122506331 has 4 divisors (see below), whose sum is σ = 122622000. Its totient is φ = 122390664.

The previous prime is 122506283. The next prime is 122506339. The reversal of 122506331 is 133605221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122506331 is a prime.

It is a super-2 number, since 2×122506331² = 30015602270163122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122506297 and 122506306.

It is not an unprimeable number, because it can be changed into a prime (122506339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56231 + ... + 58368.

It is an arithmetic number, because the mean of its divisors is an integer number (30655500).

Almost surely, 2^122506331 is an apocalyptic number.

122506331 is a deficient number, since it is larger than the sum of its proper divisors (115669).

122506331 is a wasteful number, since it uses less digits than its factorization.

122506331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115668.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 122506331 is about 11068.2578123208. The cubic root of 122506331 is about 496.6527498365.

It can be divided in two parts, 12250 and 6331, that added together give a palindrome (18581).

The spelling of 122506331 in words is "one hundred twenty-two million, five hundred six thousand, three hundred thirty-one".