22142120021111 has 2 divisors, whose sum is σ = 22142120021112. Its totient is φ = 22142120021110.

The previous prime is 22142120021029. The next prime is 22142120021129. The reversal of 22142120021111 is 11112002124122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22142120021111 - 2²⁶ = 22142052912247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22142120021141) 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, 11071060010555 + 11071060010556.

It is an arithmetic number, because the mean of its divisors is an integer number (11071060010556).

Almost surely, 2^{22142120021111} is an apocalyptic number.

22142120021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22142120021111 is an equidigital number, since it uses as much as digits as its factorization.

22142120021111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22142120021111 its reverse (11112002124122), we get a palindrome (33254122145233).

The spelling of 22142120021111 in words is "twenty-two trillion, one hundred forty-two billion, one hundred twenty million, twenty-one thousand, one hundred eleven".