12220123031 has 4 divisors (see below), whose sum is σ = 12751432752. Its totient is φ = 11688813312.

The previous prime is 12220123009. The next prime is 12220123061. The reversal of 12220123031 is 13032102221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13032102221 = 1249 ⋅10434029.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220123031 is a prime.

It is a super-2 number, since 2×12220123031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220123061) 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, 265654826 + ... + 265654871.

It is an arithmetic number, because the mean of its divisors is an integer number (3187858188).

Almost surely, 2^12220123031 is an apocalyptic number.

12220123031 is a deficient number, since it is larger than the sum of its proper divisors (531309721).

12220123031 is an equidigital number, since it uses as much as digits as its factorization.

12220123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531309720.

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

Adding to 12220123031 its reverse (13032102221), we get a palindrome (25252225252).

It can be divided in two parts, 1222012 and 3031, that added together give a cube (1225043 = 107³).

The spelling of 12220123031 in words is "twelve billion, two hundred twenty million, one hundred twenty-three thousand, thirty-one".