121332042120 has 64 divisors (see below), whose sum is σ = 364155419520. Its totient is φ = 32341051904.

The previous prime is 121332042061. The next prime is 121332042173. The reversal of 121332042120 is 21240233121.

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, 55549 + ... + 495731.

It is an arithmetic number, because the mean of its divisors is an integer number (5689928430).

Almost surely, 2^121332042120 is an apocalyptic number.

121332042120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121332042120 is an abundant number, since it is smaller than the sum of its proper divisors (242823377400).

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

121332042120 is a wasteful number, since it uses less digits than its factorization.

121332042120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442494 (or 442490 counting only the distinct ones).

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

Adding to 121332042120 its reverse (21240233121), we get a palindrome (142572275241).

The spelling of 121332042120 in words is "one hundred twenty-one billion, three hundred thirty-two million, forty-two thousand, one hundred twenty".