121980698 has 48 divisors (see below), whose sum is σ = 221025024. Its totient is φ = 50309280.

The previous prime is 121980689. The next prime is 121980713. The reversal of 121980698 is 896089121.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326840 + ... + 327212.

It is an arithmetic number, because the mean of its divisors is an integer number (4604688).

Almost surely, 2^121980698 is an apocalyptic number.

121980698 is a deficient number, since it is larger than the sum of its proper divisors (99044326).

121980698 is a wasteful number, since it uses less digits than its factorization.

121980698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 121980698 is about 11044.4872221394. The cubic root of 121980698 is about 495.9414088135.

The spelling of 121980698 in words is "one hundred twenty-one million, nine hundred eighty thousand, six hundred ninety-eight".