121902090298 has 16 divisors (see below), whose sum is σ = 193668931584. Its totient is φ = 57347992000.

The previous prime is 121902090287. The next prime is 121902090301. The reversal of 121902090298 is 892090209121.

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, 440890 + ... + 661957.

It is an arithmetic number, because the mean of its divisors is an integer number (12104308224).

Almost surely, 2^121902090298 is an apocalyptic number.

121902090298 is a deficient number, since it is larger than the sum of its proper divisors (71766841286).

121902090298 is a wasteful number, since it uses less digits than its factorization.

121902090298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106117.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 121902090298 in words is "one hundred twenty-one billion, nine hundred two million, ninety thousand, two hundred ninety-eight".