222105109 has 2 divisors, whose sum is σ = 222105110. Its totient is φ = 222105108.

The previous prime is 222105053. The next prime is 222105133. The reversal of 222105109 is 901501222.

222105109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210395025 + 11710084 = 14505^2 + 3422^2 .

It is a cyclic number.

It is not a de Polignac number, because 222105109 - 2²⁷ = 87887381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222105109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222105179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111052554 + 111052555.

It is an arithmetic number, because the mean of its divisors is an integer number (111052555).

Almost surely, 2^222105109 is an apocalyptic number.

It is an amenable number.

222105109 is a deficient number, since it is larger than the sum of its proper divisors (1).

222105109 is an equidigital number, since it uses as much as digits as its factorization.

222105109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 222105109 is about 14903.1912354368. The cubic root of 222105109 is about 605.6004411560.

The spelling of 222105109 in words is "two hundred twenty-two million, one hundred five thousand, one hundred nine".