22002221111 has 4 divisors (see below), whose sum is σ = 23694699672. Its totient is φ = 20309742552.

The previous prime is 22002221093. The next prime is 22002221113. The reversal of 22002221111 is 11112220022.

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 22002221111 - 2²² = 21998026807 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002221113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846239261 + ... + 846239286.

It is an arithmetic number, because the mean of its divisors is an integer number (5923674918).

Almost surely, 2^22002221111 is an apocalyptic number.

22002221111 is a deficient number, since it is larger than the sum of its proper divisors (1692478561).

22002221111 is a wasteful number, since it uses less digits than its factorization.

22002221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692478560.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22002221111 its reverse (11112220022), we get a palindrome (33114441133).

The spelling of 22002221111 in words is "twenty-two billion, two million, two hundred twenty-one thousand, one hundred eleven".