101202121099 has 24 divisors (see below), whose sum is σ = 110301724512. Its totient is φ = 92522227200.

The previous prime is 101202121091. The next prime is 101202121109. The reversal of 101202121099 is 990121202101.

It is not a de Polignac number, because 101202121099 - 2³ = 101202121091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101202121091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4812562 + ... + 4833544.

It is an arithmetic number, because the mean of its divisors is an integer number (4595905188).

Almost surely, 2^101202121099 is an apocalyptic number.

101202121099 is a deficient number, since it is larger than the sum of its proper divisors (9099603413).

101202121099 is a wasteful number, since it uses less digits than its factorization.

101202121099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21207 (or 21154 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 101202121099 in words is "one hundred one billion, two hundred two million, one hundred twenty-one thousand, ninety-nine".