20210022099999 has 20 divisors (see below), whose sum is σ = 30194487327664. Its totient is φ = 13471470383904.

The previous prime is 20210022099991. The next prime is 20210022100043. The reversal of 20210022099999 is 99999022001202.

It is not a de Polignac number, because 20210022099999 - 2³ = 20210022099991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210022099991) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16801027 + ... + 17963700.

Almost surely, 2^{20210022099999} is an apocalyptic number.

20210022099999 is a deficient number, since it is larger than the sum of its proper divisors (9984465227665).

20210022099999 is an equidigital number, since it uses as much as digits as its factorization.

20210022099999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34771916 (or 34771907 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 54.

The spelling of 20210022099999 in words is "twenty trillion, two hundred ten billion, twenty-two million, ninety-nine thousand, nine hundred ninety-nine".