121992052 has 48 divisors (see below), whose sum is σ = 266409472. Its totient is φ = 47589120.

The previous prime is 121992049. The next prime is 121992077. The reversal of 121992052 is 250299121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24277 + ... + 28867.

Almost surely, 2^121992052 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 121992052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133204736).

121992052 is an abundant number, since it is smaller than the sum of its proper divisors (144417420).

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

121992052 is a wasteful number, since it uses less digits than its factorization.

121992052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4688 (or 4686 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 121992052 is about 11045.0012222725. The cubic root of 121992052 is about 495.9567957945.

The spelling of 121992052 in words is "one hundred twenty-one million, nine hundred ninety-two thousand, fifty-two".