121820796 has 36 divisors (see below), whose sum is σ = 308763000. Its totient is φ = 40497888.

The previous prime is 121820791. The next prime is 121820819. The reversal of 121820796 is 697028121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 121820796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121820791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9655 + ... + 18353.

It is an arithmetic number, because the mean of its divisors is an integer number (8576750).

Almost surely, 2^121820796 is an apocalyptic number.

It is an amenable number.

121820796 is an abundant number, since it is smaller than the sum of its proper divisors (186942204).

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

121820796 is a wasteful number, since it uses less digits than its factorization.

121820796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9098 (or 9093 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 121820796 is about 11037.2458521137. The cubic root of 121820796 is about 495.7246075723.

The spelling of 121820796 in words is "one hundred twenty-one million, eight hundred twenty thousand, seven hundred ninety-six".