220012111999 has 4 divisors (see below), whose sum is σ = 220393416064. Its totient is φ = 219630807936.

The previous prime is 220012111981. The next prime is 220012112039. The reversal of 220012111999 is 999111210022.

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 220012111999 - 2⁵ = 220012111967 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 (220012111909) 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, 190651167 + ... + 190652320.

It is an arithmetic number, because the mean of its divisors is an integer number (55098354016).

Almost surely, 2^220012111999 is an apocalyptic number.

220012111999 is a deficient number, since it is larger than the sum of its proper divisors (381304065).

220012111999 is an equidigital number, since it uses as much as digits as its factorization.

220012111999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381304064.

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

The spelling of 220012111999 in words is "two hundred twenty billion, twelve million, one hundred eleven thousand, nine hundred ninety-nine".