121124992 has 32 divisors (see below), whose sum is σ = 251801280. Its totient is φ = 57927936.

The previous prime is 121124977. The next prime is 121124999. The reversal of 121124992 is 299421121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (121124999) 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, 17628 + ... + 23515.

It is an arithmetic number, because the mean of its divisors is an integer number (7868790).

Almost surely, 2^121124992 is an apocalyptic number.

It is an amenable number.

121124992 is an abundant number, since it is smaller than the sum of its proper divisors (130676288).

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

121124992 is an equidigital number, since it uses as much as digits as its factorization.

121124992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41180 (or 41168 counting only the distinct ones).

The product of its digits is 2592, while the sum is 31.

The square root of 121124992 is about 11005.6799880789. The cubic root of 121124992 is about 494.7789946310.

The spelling of 121124992 in words is "one hundred twenty-one million, one hundred twenty-four thousand, nine hundred ninety-two".