121040252198 has 8 divisors (see below), whose sum is σ = 185782712808. Its totient is φ = 59112681264.

The previous prime is 121040252197. The next prime is 121040252237. The reversal of 121040252198 is 891252040121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121040252197) 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, 703722311 + ... + 703722482.

It is an arithmetic number, because the mean of its divisors is an integer number (23222839101).

Almost surely, 2^121040252198 is an apocalyptic number.

121040252198 is a deficient number, since it is larger than the sum of its proper divisors (64742460610).

121040252198 is a wasteful number, since it uses less digits than its factorization.

121040252198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407444838.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 121040252198 in words is "one hundred twenty-one billion, forty million, two hundred fifty-two thousand, one hundred ninety-eight".