20102000120099 has 24 divisors (see below), whose sum is σ = 21253296073968. Its totient is φ = 19010261848320.

The previous prime is 20102000120053. The next prime is 20102000120101. The reversal of 20102000120099 is 99002100020102.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20102000120099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102000120009) 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, 644754599 + ... + 644785775.

It is an arithmetic number, because the mean of its divisors is an integer number (885554003082).

Almost surely, 2^{20102000120099} is an apocalyptic number.

20102000120099 is a deficient number, since it is larger than the sum of its proper divisors (1151295953869).

20102000120099 is a wasteful number, since it uses less digits than its factorization.

20102000120099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34323 (or 34304 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 20102000120099 in words is "twenty trillion, one hundred two billion, one hundred twenty thousand, ninety-nine".