121746224 has 20 divisors (see below), whose sum is σ = 248298840. Its totient is φ = 57669120.

The previous prime is 121746221. The next prime is 121746227. The reversal of 121746224 is 422647121.

It is an interprime number because it is at equal distance from previous prime (121746221) and next prime (121746227).

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (121746221) 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, 199937 + ... + 200544.

It is an arithmetic number, because the mean of its divisors is an integer number (12414942).

Almost surely, 2^121746224 is an apocalyptic number.

It is an amenable number.

121746224 is an abundant number, since it is smaller than the sum of its proper divisors (126552616).

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

121746224 is a wasteful number, since it uses less digits than its factorization.

121746224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400508 (or 400502 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 121746224 is about 11033.8671371374. The cubic root of 121746224 is about 495.6234351334.

The spelling of 121746224 in words is "one hundred twenty-one million, seven hundred forty-six thousand, two hundred twenty-four".