22112201021111 has 2 divisors, whose sum is σ = 22112201021112. Its totient is φ = 22112201021110.

The previous prime is 22112201021081. The next prime is 22112201021143. The reversal of 22112201021111 is 11112010221122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22112201021111 - 2²⁶ = 22112133912247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22112201021111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22112201021711) 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, 11056100510555 + 11056100510556.

It is an arithmetic number, because the mean of its divisors is an integer number (11056100510556).

Almost surely, 2^{22112201021111} is an apocalyptic number.

22112201021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112201021111 is an equidigital number, since it uses as much as digits as its factorization.

22112201021111 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 17.

Adding to 22112201021111 its reverse (11112010221122), we get a palindrome (33224211242233).

The spelling of 22112201021111 in words is "twenty-two trillion, one hundred twelve billion, two hundred one million, twenty-one thousand, one hundred eleven".