121810944 has 104 divisors (see below), whose sum is σ = 339697152. Its totient is φ = 38748160.

The previous prime is 121810943. The next prime is 121810963. The reversal of 121810944 is 449018121.

It is a super-2 number, since 2×121810944² = 29675812156342272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121810943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282409 + ... + 282839.

Almost surely, 2^121810944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121810944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169848576).

121810944 is an abundant number, since it is smaller than the sum of its proper divisors (217886208).

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

121810944 is an equidigital number, since it uses as much as digits as its factorization.

121810944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 121810944 is about 11036.7995360974. The cubic root of 121810944 is about 495.7112436512.

The spelling of 121810944 in words is "one hundred twenty-one million, eight hundred ten thousand, nine hundred forty-four".