222221100193 has 2 divisors, whose sum is σ = 222221100194. Its totient is φ = 222221100192.

The previous prime is 222221100151. The next prime is 222221100251. The reversal of 222221100193 is 391001122222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177086947489 + 45134152704 = 420817^2 + 212448^2 .

It is a cyclic number.

It is not a de Polignac number, because 222221100193 - 2³⁷ = 84782146721 is a prime.

It is not a weakly prime, because it can be changed into another prime (222221103193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110550096 + 111110550097.

It is an arithmetic number, because the mean of its divisors is an integer number (111110550097).

Almost surely, 2^222221100193 is an apocalyptic number.

It is an amenable number.

222221100193 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221100193 is an equidigital number, since it uses as much as digits as its factorization.

222221100193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 222221100193 in words is "two hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, one hundred ninety-three".