121898944 has 28 divisors (see below), whose sum is σ = 249700288. Its totient is φ = 58982400.

The previous prime is 121898911. The next prime is 121898947. The reversal of 121898944 is 449898121.

It is a junction number, because it is equal to n+sod(n) for n = 121898894 and 121898903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121898947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28737 + ... + 32704.

Almost surely, 2^121898944 is an apocalyptic number.

It is an amenable number.

121898944 is an abundant number, since it is smaller than the sum of its proper divisors (127801344).

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

121898944 is an equidigital number, since it uses as much as digits as its factorization.

121898944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61484 (or 61474 counting only the distinct ones).

The product of its digits is 165888, while the sum is 46.

The square root of 121898944 is about 11040.7854793035. The cubic root of 121898944 is about 495.8305873036.

The spelling of 121898944 in words is "one hundred twenty-one million, eight hundred ninety-eight thousand, nine hundred forty-four".