122223131 has 4 divisors (see below), whose sum is σ = 123156264. Its totient is φ = 121290000.

The previous prime is 122223119. The next prime is 122223133. The reversal of 122223131 is 131322221.

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 122223131 - 2¹⁸ = 121960987 is a prime.

It is a super-2 number, since 2×122223131² = 29876987502886322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122223133) 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, 466370 + ... + 466631.

It is an arithmetic number, because the mean of its divisors is an integer number (30789066).

Almost surely, 2^122223131 is an apocalyptic number.

122223131 is a deficient number, since it is larger than the sum of its proper divisors (933133).

122223131 is an equidigital number, since it uses as much as digits as its factorization.

122223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933132.

The product of its digits is 144, while the sum is 17.

The square root of 122223131 is about 11055.4570687964. The cubic root of 122223131 is about 496.2697476422.

Adding to 122223131 its reverse (131322221), we get a palindrome (253545352).

The spelling of 122223131 in words is "one hundred twenty-two million, two hundred twenty-three thousand, one hundred thirty-one".