22211211020111 has 2 divisors, whose sum is σ = 22211211020112. Its totient is φ = 22211211020110.

The previous prime is 22211211020093. The next prime is 22211211020113. The reversal of 22211211020111 is 11102011211222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22211211020111 is a prime.

Together with 22211211020113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22211211020111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211211020113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105605510055 + 11105605510056.

It is an arithmetic number, because the mean of its divisors is an integer number (11105605510056).

Almost surely, 2^{22211211020111} is an apocalyptic number.

22211211020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211211020111 is an equidigital number, since it uses as much as digits as its factorization.

22211211020111 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 17.

Adding to 22211211020111 its reverse (11102011211222), we get a palindrome (33313222231333).

The spelling of 22211211020111 in words is "twenty-two trillion, two hundred eleven billion, two hundred eleven million, twenty thousand, one hundred eleven".