202222109 has 2 divisors, whose sum is σ = 202222110. Its totient is φ = 202222108.

The previous prime is 202222091. The next prime is 202222121. The reversal of 202222109 is 901222202.

Together with previous prime (202222091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146942884 + 55279225 = 12122^2 + 7435^2 .

It is a cyclic number.

It is not a de Polignac number, because 202222109 - 2⁸ = 202221853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202222169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101111054 + 101111055.

It is an arithmetic number, because the mean of its divisors is an integer number (101111055).

Almost surely, 2^202222109 is an apocalyptic number.

It is an amenable number.

202222109 is a deficient number, since it is larger than the sum of its proper divisors (1).

202222109 is an equidigital number, since it uses as much as digits as its factorization.

202222109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 202222109 is about 14220.4820241791. The cubic root of 202222109 is about 586.9614043214.

The spelling of 202222109 in words is "two hundred two million, two hundred twenty-two thousand, one hundred nine".