130321221000 has 64 divisors (see below), whose sum is σ = 406602218880. Its totient is φ = 34752324800.

The previous prime is 130321220993. The next prime is 130321221001. The reversal of 130321221000 is 122123031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (130321221001) 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, 21717204 + ... + 21723203.

It is an arithmetic number, because the mean of its divisors is an integer number (6353159670).

Almost surely, 2^130321221000 is an apocalyptic number.

130321221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130321221000 is an abundant number, since it is smaller than the sum of its proper divisors (276280997880).

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

130321221000 is a wasteful number, since it uses less digits than its factorization.

130321221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43440431 (or 43440417 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 130321221000 its reverse (122123031), we get a palindrome (130443344031).

The spelling of 130321221000 in words is "one hundred thirty billion, three hundred twenty-one million, two hundred twenty-one thousand".