121013033323220 has 24 divisors (see below), whose sum is σ = 254127780812808. Its totient is φ = 48405135075200.

The previous prime is 121013033323219. The next prime is 121013033323229. The reversal of 121013033323220 is 22323330310121.

It can be written as a sum of positive squares in 4 ways, for example, as 16675429605136 + 104337603718084 = 4083556^2 + 10214578^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121013033323220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013033323229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8712530 + ... + 17830710.

It is an arithmetic number, because the mean of its divisors is an integer number (10588657533867).

Almost surely, 2^{121013033323220} is an apocalyptic number.

121013033323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121013033323220 is an abundant number, since it is smaller than the sum of its proper divisors (133114747489588).

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

121013033323220 is a wasteful number, since it uses less digits than its factorization.

121013033323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781771 (or 9781769 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 121013033323220 its reverse (22323330310121), we get a palindrome (143336363633341).

The spelling of 121013033323220 in words is "one hundred twenty-one trillion, thirteen billion, thirty-three million, three hundred twenty-three thousand, two hundred twenty".