100131221022 has 32 divisors (see below), whose sum is σ = 229761937152. Its totient is φ = 28497598464.

The previous prime is 100131221009. The next prime is 100131221039. The reversal of 100131221022 is 220122131001.

It is a super-2 number, since 2×100131221022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100131220992 and 100131221010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4627488 + ... + 4649075.

It is an arithmetic number, because the mean of its divisors is an integer number (7180060536).

Almost surely, 2^100131221022 is an apocalyptic number.

100131221022 is an abundant number, since it is smaller than the sum of its proper divisors (129630716130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100131221022 is a wasteful number, since it uses less digits than its factorization.

100131221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9276832.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100131221022 its reverse (220122131001), we get a palindrome (320253352023).

The spelling of 100131221022 in words is "one hundred billion, one hundred thirty-one million, two hundred twenty-one thousand, twenty-two".