12220222212331 has 16 divisors (see below), whose sum is σ = 14451096268800. Its totient is φ = 10110807308448.

The previous prime is 12220222212323. The next prime is 12220222212349. The reversal of 12220222212331 is 13321222202221.

It is not a de Polignac number, because 12220222212331 - 2³ = 12220222212323 is a prime.

It is a super-2 number, since 2×12220222212331² (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 = 12220222212296 and 12220222212305.

It is not an unprimeable number, because it can be changed into a prime (12220222212031) 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, 6550995 + ... + 8207068.

It is an arithmetic number, because the mean of its divisors is an integer number (903193516800).

Almost surely, 2^{12220222212331} is an apocalyptic number.

12220222212331 is a deficient number, since it is larger than the sum of its proper divisors (2230874056469).

12220222212331 is a wasteful number, since it uses less digits than its factorization.

12220222212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14762178.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12220222212331 its reverse (13321222202221), we get a palindrome (25541444414552).

The spelling of 12220222212331 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twelve thousand, three hundred thirty-one".