222200129 has 2 divisors, whose sum is σ = 222200130. Its totient is φ = 222200128.

The previous prime is 222200119. The next prime is 222200177. The reversal of 222200129 is 921002222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219484225 + 2715904 = 14815^2 + 1648^2 .

It is a cyclic number.

It is not a de Polignac number, because 222200129 - 2¹⁶ = 222134593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222200129.

It is not a weakly prime, because it can be changed into another prime (222200119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111100064 + 111100065.

It is an arithmetic number, because the mean of its divisors is an integer number (111100065).

Almost surely, 2^222200129 is an apocalyptic number.

It is an amenable number.

222200129 is a deficient number, since it is larger than the sum of its proper divisors (1).

222200129 is an equidigital number, since it uses as much as digits as its factorization.

222200129 is an evil number, because the sum of its binary digits is even.

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

The square root of 222200129 is about 14906.3788023785. The cubic root of 222200129 is about 605.6867905876.

The spelling of 222200129 in words is "two hundred twenty-two million, two hundred thousand, one hundred twenty-nine".