20212000111999 has 8 divisors (see below), whose sum is σ = 20500406995040. Its totient is φ = 19923904855296.

The previous prime is 20212000111993. The next prime is 20212000112009. The reversal of 20212000111999 is 99911100021202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20212000111999 - 2¹⁵ = 20212000079231 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 (20212000111993) 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, 77775939 + ... + 78035380.

It is an arithmetic number, because the mean of its divisors is an integer number (2562550874380).

Almost surely, 2^{20212000111999} is an apocalyptic number.

20212000111999 is a deficient number, since it is larger than the sum of its proper divisors (288406883041).

20212000111999 is a wasteful number, since it uses less digits than its factorization.

20212000111999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155813169.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 20212000111999 in words is "twenty trillion, two hundred twelve billion, one hundred eleven thousand, nine hundred ninety-nine".