122204142 has 24 divisors (see below), whose sum is σ = 267401160. Its totient is φ = 40330800.

The previous prime is 122204123. The next prime is 122204153. The reversal of 122204142 is 241402221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 31792 + ... + 35427.

It is an arithmetic number, because the mean of its divisors is an integer number (11141715).

Almost surely, 2^122204142 is an apocalyptic number.

122204142 is an abundant number, since it is smaller than the sum of its proper divisors (145197018).

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

122204142 is a wasteful number, since it uses less digits than its factorization.

122204142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67328 (or 67325 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 122204142 is about 11054.5982287915. The cubic root of 122204142 is about 496.2440455943.

Adding to 122204142 its reverse (241402221), we get a palindrome (363606363).

The spelling of 122204142 in words is "one hundred twenty-two million, two hundred four thousand, one hundred forty-two".