22111140109 has 2 divisors, whose sum is σ = 22111140110. Its totient is φ = 22111140108.

The previous prime is 22111140031. The next prime is 22111140167. The reversal of 22111140109 is 90104111122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22056705225 + 54434884 = 148515^2 + 7378^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111140109 - 2²⁷ = 21976922381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22111140109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22111140169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055570054 + 11055570055.

It is an arithmetic number, because the mean of its divisors is an integer number (11055570055).

Almost surely, 2^22111140109 is an apocalyptic number.

It is an amenable number.

22111140109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111140109 is an equidigital number, since it uses as much as digits as its factorization.

22111140109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 22111140109 in words is "twenty-two billion, one hundred eleven million, one hundred forty thousand, one hundred nine".