122311222031 has 4 divisors (see below), whose sum is σ = 123454317672. Its totient is φ = 121168126392.

The previous prime is 122311221973. The next prime is 122311222051. The reversal of 122311222031 is 130222113221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130222113221 = 4051 ⋅32145671.

It is a cyclic number.

It is not a de Polignac number, because 122311222031 - 2²² = 122307027727 is a prime.

It is a super-2 number, since 2×122311222031² (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 = 122311221994 and 122311222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122311222051) 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, 571547660 + ... + 571547873.

It is an arithmetic number, because the mean of its divisors is an integer number (30863579418).

Almost surely, 2^122311222031 is an apocalyptic number.

122311222031 is a deficient number, since it is larger than the sum of its proper divisors (1143095641).

122311222031 is a wasteful number, since it uses less digits than its factorization.

122311222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143095640.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 122311222031 its reverse (130222113221), we get a palindrome (252533335252).

The spelling of 122311222031 in words is "one hundred twenty-two billion, three hundred eleven million, two hundred twenty-two thousand, thirty-one".