121896812 has 12 divisors (see below), whose sum is σ = 214114320. Its totient is φ = 60721296.

The previous prime is 121896811. The next prime is 121896881. The reversal of 121896812 is 218698121.

It is not an unprimeable number, because it can be changed into a prime (121896811) 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, 55568 + ... + 57719.

It is an arithmetic number, because the mean of its divisors is an integer number (17842860).

Almost surely, 2^121896812 is an apocalyptic number.

It is an amenable number.

121896812 is a deficient number, since it is larger than the sum of its proper divisors (92217508).

121896812 is a wasteful number, since it uses less digits than its factorization.

121896812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113560 (or 113558 counting only the distinct ones).

The product of its digits is 13824, while the sum is 38.

The square root of 121896812 is about 11040.6889277798. The cubic root of 121896812 is about 495.8276966115.

The spelling of 121896812 in words is "one hundred twenty-one million, eight hundred ninety-six thousand, eight hundred twelve".