20000212100999 has 4 divisors (see below), whose sum is σ = 21538689954936. Its totient is φ = 18461734247064.

The previous prime is 20000212100977. The next prime is 20000212101013. The reversal of 20000212100999 is 99900121200002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20000212100999 - 2²⁸ = 19999943665543 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 (20000212100929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769238926949 + ... + 769238926974.

It is an arithmetic number, because the mean of its divisors is an integer number (5384672488734).

Almost surely, 2^{20000212100999} is an apocalyptic number.

20000212100999 is a deficient number, since it is larger than the sum of its proper divisors (1538477853937).

20000212100999 is a wasteful number, since it uses less digits than its factorization.

20000212100999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538477853936.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 20000212100999 in words is "twenty trillion, two hundred twelve million, one hundred thousand, nine hundred ninety-nine".