99900102110121 has 96 divisors (see below), whose sum is σ = 165210315379200. Its totient is φ = 57766607585280.

The previous prime is 99900102110093. The next prime is 99900102110131. The reversal of 99900102110121 is 12101120100999.

It is not a de Polignac number, because 99900102110121 - 2¹³ = 99900102101929 is a prime.

It is a super-2 number, since 2×99900102110121² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99900102110131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 541897641 + ... + 542081961.

It is an arithmetic number, because the mean of its divisors is an integer number (1720940785200).

Almost surely, 2^{99900102110121} is an apocalyptic number.

It is an amenable number.

99900102110121 is a deficient number, since it is larger than the sum of its proper divisors (65310213269079).

99900102110121 is a wasteful number, since it uses less digits than its factorization.

99900102110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189439 (or 189436 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 36.

The spelling of 99900102110121 in words is "ninety-nine trillion, nine hundred billion, one hundred two million, one hundred ten thousand, one hundred twenty-one".