12001222320031 has 16 divisors (see below), whose sum is σ = 13735435070016. Its totient is φ = 10271956697856.

The previous prime is 12001222319987. The next prime is 12001222320053. The reversal of 12001222320031 is 13002322210021.

It is not a de Polignac number, because 12001222320031 - 2²⁹ = 12000685449119 is a prime.

It is a super-2 number, since 2×12001222320031² (a number of 27 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 = 12001222319990 and 12001222320008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001222320631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15656445 + ... + 16405081.

It is an arithmetic number, because the mean of its divisors is an integer number (858464691876).

Almost surely, 2^{12001222320031} is an apocalyptic number.

12001222320031 is a deficient number, since it is larger than the sum of its proper divisors (1734212749985).

12001222320031 is an equidigital number, since it uses as much as digits as its factorization.

12001222320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751938.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12001222320031 its reverse (13002322210021), we get a palindrome (25003544530052).

The spelling of 12001222320031 in words is "twelve trillion, one billion, two hundred twenty-two million, three hundred twenty thousand, thirty-one".