113221220320020 has 48 divisors (see below), whose sum is σ = 318679204451328. Its totient is φ = 30034250413440.

The previous prime is 113221220319973. The next prime is 113221220320259. The reversal of 113221220320020 is 20023022122311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4939832359 + ... + 4939855278.

It is an arithmetic number, because the mean of its divisors is an integer number (6639150092736).

Almost surely, 2^{113221220320020} is an apocalyptic number.

113221220320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113221220320020 is an abundant number, since it is smaller than the sum of its proper divisors (205457984131308).

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

113221220320020 is a wasteful number, since it uses less digits than its factorization.

113221220320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9879687840 (or 9879687838 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 113221220320020 its reverse (20023022122311), we get a palindrome (133244242442331).

The spelling of 113221220320020 in words is "one hundred thirteen trillion, two hundred twenty-one billion, two hundred twenty million, three hundred twenty thousand, twenty".