130021003220 has 12 divisors (see below), whose sum is σ = 273044106804. Its totient is φ = 52008401280.

The previous prime is 130021003187. The next prime is 130021003237. The reversal of 130021003220 is 22300120031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51466367044 + 78554636176 = 226862^2 + 280276^2 .

It is a super-2 number, since 2×130021003220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130021003195 and 130021003204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3250525061 + ... + 3250525100.

It is an arithmetic number, because the mean of its divisors is an integer number (22753675567).

Almost surely, 2^130021003220 is an apocalyptic number.

130021003220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130021003220 is an abundant number, since it is smaller than the sum of its proper divisors (143023103584).

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

130021003220 is a wasteful number, since it uses less digits than its factorization.

130021003220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501050170 (or 6501050168 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 130021003220 its reverse (22300120031), we get a palindrome (152321123251).

The spelling of 130021003220 in words is "one hundred thirty billion, twenty-one million, three thousand, two hundred twenty".