130221421100928 has 96 divisors (see below), whose sum is σ = 394448109486600. Its totient is φ = 41122554024960.

The previous prime is 130221421100887. The next prime is 130221421100929. The reversal of 130221421100928 is 829001124122031.

It is a happy number.

130221421100928 is a `hidden beast` number, since 1 + 3 + 0 + 221 + 421 + 1 + 0 + 0 + 9 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×130221421100928² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 130221421100892 and 130221421100901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221421100929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2974699903 + ... + 2974743678.

Almost surely, 2^{130221421100928} is an apocalyptic number.

130221421100928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

130221421100928 is an abundant number, since it is smaller than the sum of its proper divisors (264226688385672).

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

130221421100928 is a wasteful number, since it uses less digits than its factorization.

130221421100928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5949443620 (or 5949443605 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

Adding to 130221421100928 its reverse (829001124122031), we get a palindrome (959222545222959).

The spelling of 130221421100928 in words is "one hundred thirty trillion, two hundred twenty-one billion, four hundred twenty-one million, one hundred thousand, nine hundred twenty-eight".