22122222109111 has 2 divisors, whose sum is σ = 22122222109112. Its totient is φ = 22122222109110.

The previous prime is 22122222109081. The next prime is 22122222109139. The reversal of 22122222109111 is 11190122222122.

It is an a-pointer prime, because the next prime (22122222109139) can be obtained adding 22122222109111 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22122222109111 - 2⁷ = 22122222108983 is a prime.

It is a super-2 number, since 2×22122222109111² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22122222109111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22122222109411) 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, 11061111054555 + 11061111054556.

It is an arithmetic number, because the mean of its divisors is an integer number (11061111054556).

Almost surely, 2^{22122222109111} is an apocalyptic number.

22122222109111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122222109111 is an equidigital number, since it uses as much as digits as its factorization.

22122222109111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 22122222109111 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred nine thousand, one hundred eleven".