222121200202189 has 2 divisors, whose sum is σ = 222121200202190. Its totient is φ = 222121200202188.

The previous prime is 222121200202183. The next prime is 222121200202259. The reversal of 222121200202189 is 981202002121222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131114522775625 + 91006677426564 = 11450525^2 + 9539742^2 .

It is a cyclic number.

It is not a de Polignac number, because 222121200202189 - 2⁵ = 222121200202157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222121200202183) 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, 111060600101094 + 111060600101095.

It is an arithmetic number, because the mean of its divisors is an integer number (111060600101095).

Almost surely, 2^{222121200202189} is an apocalyptic number.

It is an amenable number.

222121200202189 is a deficient number, since it is larger than the sum of its proper divisors (1).

222121200202189 is an equidigital number, since it uses as much as digits as its factorization.

222121200202189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 222121200202189 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred million, two hundred two thousand, one hundred eighty-nine".