12220331311021 has 16 divisors (see below), whose sum is σ = 12876119052160. Its totient is φ = 11565806616000.

The previous prime is 12220331311007. The next prime is 12220331311061. The reversal of 12220331311021 is 12011313302221.

It is not a de Polignac number, because 12220331311021 - 2⁷ = 12220331310893 is a prime.

It is a super-2 number, since 2×12220331311021² (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 = 12220331310983 and 12220331311001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220331311061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413854960 + ... + 413884486.

It is an arithmetic number, because the mean of its divisors is an integer number (804757440760).

Almost surely, 2^{12220331311021} is an apocalyptic number.

It is an amenable number.

12220331311021 is a deficient number, since it is larger than the sum of its proper divisors (655787741139).

12220331311021 is a wasteful number, since it uses less digits than its factorization.

12220331311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50164.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12220331311021 its reverse (12011313302221), we get a palindrome (24231644613242).

The spelling of 12220331311021 in words is "twelve trillion, two hundred twenty billion, three hundred thirty-one million, three hundred eleven thousand, twenty-one".