20011210200999 has 12 divisors (see below), whose sum is σ = 28933063100656. Its totient is φ = 13327892170272.

The previous prime is 20011210200977. The next prime is 20011210201019. The reversal of 20011210200999 is 99900201211002.

It is not a de Polignac number, because 20011210200999 - 2¹² = 20011210196903 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 (20011210200199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1076209387 + ... + 1076227980.

Almost surely, 2^{20011210200999} is an apocalyptic number.

20011210200999 is a deficient number, since it is larger than the sum of its proper divisors (8921852899657).

20011210200999 is a wasteful number, since it uses less digits than its factorization.

20011210200999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152438406 (or 2152438403 counting only the distinct ones).

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

The spelling of 20011210200999 in words is "twenty trillion, eleven billion, two hundred ten million, two hundred thousand, nine hundred ninety-nine".