20210222111 has 2 divisors, whose sum is σ = 20210222112. Its totient is φ = 20210222110.

The previous prime is 20210222093. The next prime is 20210222117. The reversal of 20210222111 is 11122201202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20210222111 - 2²⁶ = 20143113247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210222117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105111055 + 10105111056.

It is an arithmetic number, because the mean of its divisors is an integer number (10105111056).

Almost surely, 2^20210222111 is an apocalyptic number.

20210222111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210222111 is an equidigital number, since it uses as much as digits as its factorization.

20210222111 is an evil number, because the sum of its binary digits is even.

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

Adding to 20210222111 its reverse (11122201202), we get a palindrome (31332423313).

The spelling of 20210222111 in words is "twenty billion, two hundred ten million, two hundred twenty-two thousand, one hundred eleven".