12221111330031 has 16 divisors (see below), whose sum is σ = 16602968825856. Its totient is φ = 7993343738016.

The previous prime is 12221111330009. The next prime is 12221111330069. The reversal of 12221111330031 is 13003311112221.

It is not a de Polignac number, because 12221111330031 - 2⁹ = 12221111329519 is a prime.

It is a super-2 number, since 2×12221111330031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221111330431) 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, 2156506 + ... + 5393768.

It is an arithmetic number, because the mean of its divisors is an integer number (1037685551616).

Almost surely, 2^{12221111330031} is an apocalyptic number.

12221111330031 is a deficient number, since it is larger than the sum of its proper divisors (4381857495825).

12221111330031 is a wasteful number, since it uses less digits than its factorization.

12221111330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261062.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12221111330031 its reverse (13003311112221), we get a palindrome (25224422442252).

The spelling of 12221111330031 in words is "twelve trillion, two hundred twenty-one billion, one hundred eleven million, three hundred thirty thousand, thirty-one".