122200031 has 2 divisors, whose sum is σ = 122200032. Its totient is φ = 122200030.

The previous prime is 122200021. The next prime is 122200051. The reversal of 122200031 is 130002221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (130002221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122200031 - 2¹⁸ = 121937887 is a prime.

It is a super-2 number, since 2×122200031² = 29865695152801922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122199985 and 122200021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122200021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100015 + 61100016.

It is an arithmetic number, because the mean of its divisors is an integer number (61100016).

Almost surely, 2^122200031 is an apocalyptic number.

122200031 is a deficient number, since it is larger than the sum of its proper divisors (1).

122200031 is an equidigital number, since it uses as much as digits as its factorization.

122200031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 122200031 is about 11054.4122865035. The cubic root of 122200031 is about 496.2384809107.

Adding to 122200031 its reverse (130002221), we get a palindrome (252202252).

The spelling of 122200031 in words is "one hundred twenty-two million, two hundred thousand, thirty-one".