10121099998 has 16 divisors (see below), whose sum is σ = 16078170240. Its totient is φ = 4768277976.

The previous prime is 10121099993. The next prime is 10121099999. The reversal of 10121099998 is 89999012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121099993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1638888 + ... + 1645051.

It is an arithmetic number, because the mean of its divisors is an integer number (1004885640).

Almost surely, 2^10121099998 is an apocalyptic number.

10121099998 is a deficient number, since it is larger than the sum of its proper divisors (5957070242).

10121099998 is a wasteful number, since it uses less digits than its factorization.

10121099998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284031.

The product of its (nonzero) digits is 104976, while the sum is 49.

The spelling of 10121099998 in words is "ten billion, one hundred twenty-one million, ninety-nine thousand, nine hundred ninety-eight".