130221332020 has 48 divisors (see below), whose sum is σ = 302460047568. Its totient is φ = 46782213120.

The previous prime is 130221331997. The next prime is 130221332029. The reversal of 130221332020 is 20233122031.

It can be written as a sum of positive squares in 8 ways, for example, as 14072602384 + 116148729636 = 118628^2 + 340806^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221332029) 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, 6758641 + ... + 6777880.

It is an arithmetic number, because the mean of its divisors is an integer number (6301250991).

Almost surely, 2^130221332020 is an apocalyptic number.

130221332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130221332020 is an abundant number, since it is smaller than the sum of its proper divisors (172238715548).

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

130221332020 is a wasteful number, since it uses less digits than its factorization.

130221332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13536580 (or 13536578 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 130221332020 its reverse (20233122031), we get a palindrome (150454454051).

It can be divided in two parts, 130221 and 332020, that added together give a triangular number (462241 = T₉₆₁).

The spelling of 130221332020 in words is "one hundred thirty billion, two hundred twenty-one million, three hundred thirty-two thousand, twenty".