222220012291 has 2 divisors, whose sum is σ = 222220012292. Its totient is φ = 222220012290.

The previous prime is 222220012279. The next prime is 222220012349. The reversal of 222220012291 is 192210022222.

222220012291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222220012291 - 2⁷ = 222220012163 is a prime.

It is a super-2 number, since 2×222220012291² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222220012691) 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, 111110006145 + 111110006146.

It is an arithmetic number, because the mean of its divisors is an integer number (111110006146).

Almost surely, 2^222220012291 is an apocalyptic number.

222220012291 is a deficient number, since it is larger than the sum of its proper divisors (1).

222220012291 is an equidigital number, since it uses as much as digits as its factorization.

222220012291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 222220012291 in words is "two hundred twenty-two billion, two hundred twenty million, twelve thousand, two hundred ninety-one".