130231221220 has 24 divisors (see below), whose sum is σ = 273503236608. Its totient is φ = 52089122400.

The previous prime is 130231221199. The next prime is 130231221221. The reversal of 130231221220 is 22122132031.

It is not an unprimeable number, because it can be changed into a prime (130231221221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119485 + ... + 524155.

It is an arithmetic number, because the mean of its divisors is an integer number (11395968192).

Almost surely, 2^130231221220 is an apocalyptic number.

130231221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130231221220 is an abundant number, since it is smaller than the sum of its proper divisors (143272015388).

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

130231221220 is a wasteful number, since it uses less digits than its factorization.

130231221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420771 (or 420769 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 130231221220 its reverse (22122132031), we get a palindrome (152353353251).

The spelling of 130231221220 in words is "one hundred thirty billion, two hundred thirty-one million, two hundred twenty-one thousand, two hundred twenty".