20010100099 has 16 divisors (see below), whose sum is σ = 21929904000. Its totient is φ = 18107280000.

The previous prime is 20010100093. The next prime is 20010100111. The reversal of 20010100099 is 99000101002.

It is a cyclic number.

It is not a de Polignac number, because 20010100099 - 2⁷ = 20010099971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010100093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2196544 + ... + 2205634.

It is an arithmetic number, because the mean of its divisors is an integer number (1370619000).

Almost surely, 2^20010100099 is an apocalyptic number.

20010100099 is a deficient number, since it is larger than the sum of its proper divisors (1919803901).

20010100099 is a wasteful number, since it uses less digits than its factorization.

20010100099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10002.

The product of its (nonzero) digits is 162, while the sum is 22.

It can be divided in two parts, 2001010009 and 9, that multiplied together give a palindrome (18009090081).

The spelling of 20010100099 in words is "twenty billion, ten million, one hundred thousand, ninety-nine".