111222022211999 has 16 divisors (see below), whose sum is σ = 117480697703424. Its totient is φ = 105130313164800.

The previous prime is 111222022211987. The next prime is 111222022212053. The reversal of 111222022211999 is 999112220222111.

It is a cyclic number.

It is not a de Polignac number, because 111222022211999 - 2⁴ = 111222022211983 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 (111222022211099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263577887 + ... + 263999519.

It is an arithmetic number, because the mean of its divisors is an integer number (7342543606464).

Almost surely, 2^{111222022211999} is an apocalyptic number.

111222022211999 is a deficient number, since it is larger than the sum of its proper divisors (6258675491425).

111222022211999 is a wasteful number, since it uses less digits than its factorization.

111222022211999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619598.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 111222022211999 in words is "one hundred eleven trillion, two hundred twenty-two billion, twenty-two million, two hundred eleven thousand, nine hundred ninety-nine".