121896998 has 16 divisors (see below), whose sum is σ = 185845920. Its totient is φ = 59956416.

The previous prime is 121896967. The next prime is 121897003. The reversal of 121896998 is 899698121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30458 + ... + 34226.

It is an arithmetic number, because the mean of its divisors is an integer number (11615370).

Almost surely, 2^121896998 is an apocalyptic number.

121896998 is a deficient number, since it is larger than the sum of its proper divisors (63948922).

121896998 is a wasteful number, since it uses less digits than its factorization.

121896998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031.

The product of its digits is 559872, while the sum is 53.

The square root of 121896998 is about 11040.6973511640. The cubic root of 121896998 is about 495.8279488026.

The spelling of 121896998 in words is "one hundred twenty-one million, eight hundred ninety-six thousand, nine hundred ninety-eight".