222112120202173 has 2 divisors, whose sum is σ = 222112120202174. Its totient is φ = 222112120202172.

The previous prime is 222112120202099. The next prime is 222112120202183. The reversal of 222112120202173 is 371202021211222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209635591524804 + 12476528677369 = 14478798^2 + 3532213^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222112120202173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222112120202183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056060101086 + 111056060101087.

It is an arithmetic number, because the mean of its divisors is an integer number (111056060101087).

Almost surely, 2^{222112120202173} is an apocalyptic number.

It is an amenable number.

222112120202173 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112120202173 is an equidigital number, since it uses as much as digits as its factorization.

222112120202173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 222112120202173 its reverse (371202021211222), we get a palindrome (593314141413395).

The spelling of 222112120202173 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty million, two hundred two thousand, one hundred seventy-three".