220102321131 has 24 divisors (see below), whose sum is σ = 396374744064. Its totient is φ = 114338867760.

The previous prime is 220102321093. The next prime is 220102321147. The reversal of 220102321131 is 131123201022.

It is not a de Polignac number, because 220102321131 - 2⁹ = 220102320619 is a prime.

It is a super-2 number, since 2×220102321131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220102323131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158803291 + ... + 158804676.

It is an arithmetic number, because the mean of its divisors is an integer number (16515614336).

Almost surely, 2^220102321131 is an apocalyptic number.

220102321131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220102321131 is a deficient number, since it is larger than the sum of its proper divisors (176272422933).

220102321131 is a wasteful number, since it uses less digits than its factorization.

220102321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317607991 (or 317607988 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 220102321131 its reverse (131123201022), we get a palindrome (351225522153).

The spelling of 220102321131 in words is "two hundred twenty billion, one hundred two million, three hundred twenty-one thousand, one hundred thirty-one".