130221212404420 has 12 divisors (see below), whose sum is σ = 273464546049324. Its totient is φ = 52088484961760.

The previous prime is 130221212404411. The next prime is 130221212404421. The reversal of 130221212404420 is 24404212122031.

It can be written as a sum of positive squares in 2 ways, for example, as 15285488231556 + 114935724172864 = 3909666^2 + 10720808^2 .

It is a super-4 number, since 4×130221212404420⁴ (a number of 58 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (130221212404421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3255530310091 + ... + 3255530310130.

It is an arithmetic number, because the mean of its divisors is an integer number (22788712170777).

Almost surely, 2^{130221212404420} is an apocalyptic number.

130221212404420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130221212404420 is an abundant number, since it is smaller than the sum of its proper divisors (143243333644904).

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

130221212404420 is a wasteful number, since it uses less digits than its factorization.

130221212404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6511060620230 (or 6511060620228 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 130221212404420 its reverse (24404212122031), we get a palindrome (154625424526451).

The spelling of 130221212404420 in words is "one hundred thirty trillion, two hundred twenty-one billion, two hundred twelve million, four hundred four thousand, four hundred twenty".