20011012200999 has 8 divisors (see below), whose sum is σ = 29645944001520. Its totient is φ = 13340674800648.

The previous prime is 20011012200967. The next prime is 20011012201001. The reversal of 20011012200999 is 99900221011002.

It is not a de Polignac number, because 20011012200999 - 2⁵ = 20011012200967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011012200919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370574299992 + ... + 370574300045.

It is an arithmetic number, because the mean of its divisors is an integer number (3705743000190).

Almost surely, 2^{20011012200999} is an apocalyptic number.

20011012200999 is a deficient number, since it is larger than the sum of its proper divisors (9634931800521).

20011012200999 is an equidigital number, since it uses as much as digits as its factorization.

20011012200999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741148600046 (or 741148600040 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 20011012200999 in words is "twenty trillion, eleven billion, twelve million, two hundred thousand, nine hundred ninety-nine".