120115521042 has 32 divisors (see below), whose sum is σ = 265761368064. Its totient is φ = 35885984400.

The previous prime is 120115521023. The next prime is 120115521047. The reversal of 120115521042 is 240125511021.

It is a happy number.

It is a super-2 number, since 2×120115521042² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120115521047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12811738 + ... + 12821109.

It is an arithmetic number, because the mean of its divisors is an integer number (8305042752).

Almost surely, 2^120115521042 is an apocalyptic number.

120115521042 is an abundant number, since it is smaller than the sum of its proper divisors (145645847022).

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

120115521042 is a wasteful number, since it uses less digits than its factorization.

120115521042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25632934.

The product of its (nonzero) digits is 800, while the sum is 24.

The spelling of 120115521042 in words is "one hundred twenty billion, one hundred fifteen million, five hundred twenty-one thousand, forty-two".