130221121272 has 64 divisors (see below), whose sum is σ = 356634662400. Its totient is φ = 39295818240.

The previous prime is 130221121253. The next prime is 130221121279. The reversal of 130221121272 is 272121122031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221121279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 968833 + ... + 1095024.

It is an arithmetic number, because the mean of its divisors is an integer number (5572416600).

Almost surely, 2^130221121272 is an apocalyptic number.

130221121272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130221121272 is an abundant number, since it is smaller than the sum of its proper divisors (226413541128).

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

130221121272 is a wasteful number, since it uses less digits than its factorization.

130221121272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064116 (or 2064112 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The spelling of 130221121272 in words is "one hundred thirty billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred seventy-two".