222101201021173 has 2 divisors, whose sum is σ = 222101201021174. Its totient is φ = 222101201021172.

The previous prime is 222101201021149. The next prime is 222101201021221. The reversal of 222101201021173 is 371120102101222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133316997504804 + 88784203516369 = 11546298^2 + 9422537^2 .

It is a cyclic number.

It is not a de Polignac number, because 222101201021173 - 2⁴⁵ = 186916828932341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222101201021113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050600510586 + 111050600510587.

It is an arithmetic number, because the mean of its divisors is an integer number (111050600510587).

Almost surely, 2^{222101201021173} is an apocalyptic number.

It is an amenable number.

222101201021173 is a deficient number, since it is larger than the sum of its proper divisors (1).

222101201021173 is an equidigital number, since it uses as much as digits as its factorization.

222101201021173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 222101201021173 its reverse (371120102101222), we get a palindrome (593221303122395).

The spelling of 222101201021173 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred one million, twenty-one thousand, one hundred seventy-three".