222222201191 has 2 divisors, whose sum is σ = 222222201192. Its totient is φ = 222222201190.

The previous prime is 222222201101. The next prime is 222222201293. The reversal of 222222201191 is 191102222222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222222201191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222222201191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222222201101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111100595 + 111111100596.

It is an arithmetic number, because the mean of its divisors is an integer number (111111100596).

Almost surely, 2^222222201191 is an apocalyptic number.

222222201191 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222201191 is an equidigital number, since it uses as much as digits as its factorization.

222222201191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 222222201191 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred one thousand, one hundred ninety-one".