12220221221131 has 96 divisors (see below), whose sum is σ = 15863644160000. Its totient is φ = 9401633841600.

The previous prime is 12220221221101. The next prime is 12220221221167. The reversal of 12220221221131 is 13112212202221.

It is not a de Polignac number, because 12220221221131 - 2¹³ = 12220221212939 is a prime.

It is a super-2 number, since 2×12220221221131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12220221221101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1491904246 + ... + 1491912436.

Almost surely, 2^{12220221221131} is an apocalyptic number.

12220221221131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12220221221131 is a deficient number, since it is larger than the sum of its proper divisors (3643422938869).

12220221221131 is a wasteful number, since it uses less digits than its factorization.

12220221221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8686 (or 8661 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12220221221131 its reverse (13112212202221), we get a palindrome (25332433423352).

The spelling of 12220221221131 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred thirty-one".