22222020111 has 4 divisors (see below), whose sum is σ = 29629360152. Its totient is φ = 14814680072.

The previous prime is 22222020083. The next prime is 22222020113. The reversal of 22222020111 is 11102022222.

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 22222020111 - 2⁷ = 22222019983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222020113) 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, 3703670016 + ... + 3703670021.

It is an arithmetic number, because the mean of its divisors is an integer number (7407340038).

Almost surely, 2^22222020111 is an apocalyptic number.

22222020111 is a deficient number, since it is larger than the sum of its proper divisors (7407340041).

22222020111 is an equidigital number, since it uses as much as digits as its factorization.

22222020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407340040.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22222020111 its reverse (11102022222), we get a palindrome (33324042333).

The spelling of 22222020111 in words is "twenty-two billion, two hundred twenty-two million, twenty thousand, one hundred eleven".