121044315120 has 160 divisors (see below), whose sum is σ = 383666872320. Its totient is φ = 31554969600.

The previous prime is 121044315103. The next prime is 121044315157. The reversal of 121044315120 is 21513440121.

It is a super-2 number, since 2×121044315120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10473345 + ... + 10484895.

It is an arithmetic number, because the mean of its divisors is an integer number (2397917952).

Almost surely, 2^121044315120 is an apocalyptic number.

121044315120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121044315120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191833436160).

121044315120 is an abundant number, since it is smaller than the sum of its proper divisors (262622557200).

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

121044315120 is a wasteful number, since it uses less digits than its factorization.

121044315120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12543 (or 12537 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 121044315120 its reverse (21513440121), we get a palindrome (142557755241).

The spelling of 121044315120 in words is "one hundred twenty-one billion, forty-four million, three hundred fifteen thousand, one hundred twenty".