122222231031 has 4 divisors (see below), whose sum is σ = 162962974712. Its totient is φ = 81481487352.

The previous prime is 122222230979. The next prime is 122222231041. The reversal of 122222231031 is 130132222221.

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

It is not a de Polignac number, because 122222231031 - 2¹⁰ = 122222230007 is a prime.

It is a super-2 number, since 2×122222231031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122222230989 and 122222231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222231041) 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, 20370371836 + ... + 20370371841.

It is an arithmetic number, because the mean of its divisors is an integer number (40740743678).

Almost surely, 2^122222231031 is an apocalyptic number.

122222231031 is a deficient number, since it is larger than the sum of its proper divisors (40740743681).

122222231031 is an equidigital number, since it uses as much as digits as its factorization.

122222231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40740743680.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122222231031 its reverse (130132222221), we get a palindrome (252354453252).

The spelling of 122222231031 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred thirty-one thousand, thirty-one".