20212011099999 has 12 divisors (see below), whose sum is σ = 29199833839176. Its totient is φ = 13472501746032.

The previous prime is 20212011099961. The next prime is 20212011100031. The reversal of 20212011099999 is 99999011021202.

It is not a de Polignac number, because 20212011099999 - 2¹³ = 20212011091807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212011099949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180967792 + ... + 181079445.

It is an arithmetic number, because the mean of its divisors is an integer number (2433319486598).

Almost surely, 2^{20212011099999} is an apocalyptic number.

20212011099999 is a deficient number, since it is larger than the sum of its proper divisors (8987822739177).

20212011099999 is a wasteful number, since it uses less digits than its factorization.

20212011099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362053446 (or 362053443 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 54.

The spelling of 20212011099999 in words is "twenty trillion, two hundred twelve billion, eleven million, ninety-nine thousand, nine hundred ninety-nine".