130221221000 has 64 divisors (see below), whose sum is σ = 328157509680. Its totient is φ = 48081676800.

The previous prime is 130221220973. The next prime is 130221221003. The reversal of 130221221000 is 122122031.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1080173956 + 129141047044 = 32866^2 + 359362^2 .

It is not an unprimeable number, because it can be changed into a prime (130221221003) 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, 4995509 + ... + 5021508.

Almost surely, 2^130221221000 is an apocalyptic number.

130221221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130221221000 is an abundant number, since it is smaller than the sum of its proper divisors (197936288680).

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

130221221000 is a wasteful number, since it uses less digits than its factorization.

130221221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017051 (or 10017037 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 130221221000 its reverse (122122031), we get a palindrome (130343343031).

The spelling of 130221221000 in words is "one hundred thirty billion, two hundred twenty-one million, two hundred twenty-one thousand".