20100110121998 has 16 divisors (see below), whose sum is σ = 30257188164096. Its totient is φ = 10014381873720.

The previous prime is 20100110121979. The next prime is 20100110122013. The reversal of 20100110121998 is 89912101100102.

It is a happy number.

It is a congruent number.

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, 40085693 + ... + 40584023.

It is an arithmetic number, because the mean of its divisors is an integer number (1891074260256).

Almost surely, 2^{20100110121998} is an apocalyptic number.

20100110121998 is a deficient number, since it is larger than the sum of its proper divisors (10157078042098).

20100110121998 is a wasteful number, since it uses less digits than its factorization.

20100110121998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569879.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 20100110121998 in words is "twenty trillion, one hundred billion, one hundred ten million, one hundred twenty-one thousand, nine hundred ninety-eight".