121522042 has 16 divisors (see below), whose sum is σ = 187688160. Its totient is φ = 58977072.

The previous prime is 121522039. The next prime is 121522061. The reversal of 121522042 is 240225121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9684 + ... + 18352.

It is an arithmetic number, because the mean of its divisors is an integer number (11730510).

Almost surely, 2^121522042 is an apocalyptic number.

121522042 is a deficient number, since it is larger than the sum of its proper divisors (66166118).

121522042 is a wasteful number, since it uses less digits than its factorization.

121522042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8877.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 121522042 is about 11023.7036426058. The cubic root of 121522042 is about 495.3190365851.

Adding to 121522042 its reverse (240225121), we get a palindrome (361747163).

The spelling of 121522042 in words is "one hundred twenty-one million, five hundred twenty-two thousand, forty-two".