20032222111 has 4 divisors (see below), whose sum is σ = 21853333224. Its totient is φ = 18211111000.

The previous prime is 20032222097. The next prime is 20032222123. The reversal of 20032222111 is 11122223002.

It is a happy number.

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 20032222111 - 2²⁵ = 19998667679 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 (20032222181) 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, 910555540 + ... + 910555561.

It is an arithmetic number, because the mean of its divisors is an integer number (5463333306).

Almost surely, 2^20032222111 is an apocalyptic number.

20032222111 is a deficient number, since it is larger than the sum of its proper divisors (1821111113).

20032222111 is a wasteful number, since it uses less digits than its factorization.

20032222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821111112.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20032222111 its reverse (11122223002), we get a palindrome (31154445113).

The spelling of 20032222111 in words is "twenty billion, thirty-two million, two hundred twenty-two thousand, one hundred eleven".