122151444 has 12 divisors (see below), whose sum is σ = 285020064. Its totient is φ = 40717144.

The previous prime is 122151397. The next prime is 122151461. The reversal of 122151444 is 444151221.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 5089632 + ... + 5089655.

It is an arithmetic number, because the mean of its divisors is an integer number (23751672).

Almost surely, 2^122151444 is an apocalyptic number.

It is an amenable number.

122151444 is an abundant number, since it is smaller than the sum of its proper divisors (162868620).

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

122151444 is a wasteful number, since it uses less digits than its factorization.

122151444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10179294 (or 10179292 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 122151444 is about 11052.2144387448. The cubic root of 122151444 is about 496.1727036899.

The spelling of 122151444 in words is "one hundred twenty-two million, one hundred fifty-one thousand, four hundred forty-four".