12000122031 has 4 divisors (see below), whose sum is σ = 16000162712. Its totient is φ = 8000081352.

The previous prime is 12000122021. The next prime is 12000122039. The reversal of 12000122031 is 13022100021.

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

It is not a de Polignac number, because 12000122031 - 2⁶ = 12000121967 is a prime.

It is a super-2 number, since 2×12000122031² (a number of 21 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 = 12000121998 and 12000122016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000122039) 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, 2000020336 + ... + 2000020341.

It is an arithmetic number, because the mean of its divisors is an integer number (4000040678).

Almost surely, 2^12000122031 is an apocalyptic number.

12000122031 is a deficient number, since it is larger than the sum of its proper divisors (4000040681).

12000122031 is an equidigital number, since it uses as much as digits as its factorization.

12000122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000040680.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12000122031 its reverse (13022100021), we get a palindrome (25022222052).

The spelling of 12000122031 in words is "twelve billion, one hundred twenty-two thousand, thirty-one".