122133131 has 4 divisors (see below), whose sum is σ = 123679200. Its totient is φ = 120587064.

The previous prime is 122133113. The next prime is 122133133. The reversal of 122133131 is 131331221.

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

It is a cyclic number.

It is not a de Polignac number, because 122133131 - 2¹⁴ = 122116747 is a prime.

It is a super-2 number, since 2×122133131² = 29833003375726322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122133133) 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, 772916 + ... + 773073.

It is an arithmetic number, because the mean of its divisors is an integer number (30919800).

Almost surely, 2^122133131 is an apocalyptic number.

122133131 is a deficient number, since it is larger than the sum of its proper divisors (1546069).

122133131 is an equidigital number, since it uses as much as digits as its factorization.

122133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546068.

The product of its digits is 108, while the sum is 17.

The square root of 122133131 is about 11051.3859311853. The cubic root of 122133131 is about 496.1479069716.

Adding to 122133131 its reverse (131331221), we get a palindrome (253464352).

The spelling of 122133131 in words is "one hundred twenty-two million, one hundred thirty-three thousand, one hundred thirty-one".