121251444 has 12 divisors (see below), whose sum is σ = 282920064. Its totient is φ = 40417144.

The previous prime is 121251419. The next prime is 121251451. The reversal of 121251444 is 444152121.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5052132 + ... + 5052155.

It is an arithmetic number, because the mean of its divisors is an integer number (23576672).

Almost surely, 2^121251444 is an apocalyptic number.

It is an amenable number.

121251444 is an abundant number, since it is smaller than the sum of its proper divisors (161668620).

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

121251444 is a wasteful number, since it uses less digits than its factorization.

121251444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10104294 (or 10104292 counting only the distinct ones).

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

The square root of 121251444 is about 11011.4233412398. The cubic root of 121251444 is about 494.9511144458.

The spelling of 121251444 in words is "one hundred twenty-one million, two hundred fifty-one thousand, four hundred forty-four".