42135521122 has 16 divisors (see below), whose sum is σ = 66996616320. Its totient is φ = 19806111808.

The previous prime is 42135521107. The next prime is 42135521147. The reversal of 42135521122 is 22112553124.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668422 + ... + 728737.

It is an arithmetic number, because the mean of its divisors is an integer number (4187288520).

Almost surely, 2^42135521122 is an apocalyptic number.

42135521122 is a deficient number, since it is larger than the sum of its proper divisors (24861095198).

42135521122 is a wasteful number, since it uses less digits than its factorization.

42135521122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398065.

The product of its digits is 4800, while the sum is 28.

The spelling of 42135521122 in words is "forty-two billion, one hundred thirty-five million, five hundred twenty-one thousand, one hundred twenty-two".