20212022111 has 2 divisors, whose sum is σ = 20212022112. Its totient is φ = 20212022110.

The previous prime is 20212022093. The next prime is 20212022119. The reversal of 20212022111 is 11122021202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20212022111 - 2²⁶ = 20144913247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212022119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106011055 + 10106011056.

It is an arithmetic number, because the mean of its divisors is an integer number (10106011056).

Almost surely, 2^20212022111 is an apocalyptic number.

20212022111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212022111 is an equidigital number, since it uses as much as digits as its factorization.

20212022111 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20212022111 its reverse (11122021202), we get a palindrome (31334043313).

Subtracting from 20212022111 its reverse (11122021202), we obtain a palindrome (9090000909).

The spelling of 20212022111 in words is "twenty billion, two hundred twelve million, twenty-two thousand, one hundred eleven".