10121198998 has 8 divisors (see below), whose sum is σ = 15705308880. Its totient is φ = 4886096040.

The previous prime is 10121198963. The next prime is 10121199019. The reversal of 10121198998 is 89989112101.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87251658 + ... + 87251773.

It is an arithmetic number, because the mean of its divisors is an integer number (1963163610).

Almost surely, 2^10121198998 is an apocalyptic number.

10121198998 is a deficient number, since it is larger than the sum of its proper divisors (5584109882).

10121198998 is a wasteful number, since it uses less digits than its factorization.

10121198998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174503462.

The product of its (nonzero) digits is 93312, while the sum is 49.

The spelling of 10121198998 in words is "ten billion, one hundred twenty-one million, one hundred ninety-eight thousand, nine hundred ninety-eight".