122242142 has 16 divisors (see below), whose sum is σ = 200333952. Its totient is φ = 55480920.

The previous prime is 122242129. The next prime is 122242177. The reversal of 122242142 is 241242221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12173 + ... + 19815.

It is an arithmetic number, because the mean of its divisors is an integer number (12520872).

Almost surely, 2^122242142 is an apocalyptic number.

122242142 is a deficient number, since it is larger than the sum of its proper divisors (78091810).

122242142 is a wasteful number, since it uses less digits than its factorization.

122242142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8383.

The product of its digits is 512, while the sum is 20.

The square root of 122242142 is about 11056.3168369941. The cubic root of 122242142 is about 496.2954768011.

Adding to 122242142 its reverse (241242221), we get a palindrome (363484363).

The spelling of 122242142 in words is "one hundred twenty-two million, two hundred forty-two thousand, one hundred forty-two".