130057221 has 12 divisors (see below), whose sum is σ = 201721632. Its totient is φ = 74318328.

The previous prime is 130057219. The next prime is 130057229. The reversal of 130057221 is 122750031.

It is not a de Polignac number, because 130057221 - 2¹ = 130057219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130057229) 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, 442225 + ... + 442518.

It is an arithmetic number, because the mean of its divisors is an integer number (16810136).

Almost surely, 2^130057221 is an apocalyptic number.

It is an amenable number.

130057221 is a deficient number, since it is larger than the sum of its proper divisors (71664411).

130057221 is an equidigital number, since it uses as much as digits as its factorization.

130057221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884760 (or 884753 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 130057221 is about 11404.2632817732. The cubic root of 130057221 is about 506.6540166413.

The spelling of 130057221 in words is "one hundred thirty million, fifty-seven thousand, two hundred twenty-one".