20202212111 has 2 divisors, whose sum is σ = 20202212112. Its totient is φ = 20202212110.

The previous prime is 20202212077. The next prime is 20202212113. The reversal of 20202212111 is 11121220202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20202212111 - 2¹⁰ = 20202211087 is a prime.

Together with 20202212113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202212113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101106055 + 10101106056.

It is an arithmetic number, because the mean of its divisors is an integer number (10101106056).

Almost surely, 2^20202212111 is an apocalyptic number.

20202212111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202212111 is an equidigital number, since it uses as much as digits as its factorization.

20202212111 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 20202212111 its reverse (11121220202), we get a palindrome (31323432313).

The spelling of 20202212111 in words is "twenty billion, two hundred two million, two hundred twelve thousand, one hundred eleven".