222002311997 has 2 divisors, whose sum is σ = 222002311998. Its totient is φ = 222002311996.

The previous prime is 222002311963. The next prime is 222002312039. The reversal of 222002311997 is 799113200222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220138317721 + 1863994276 = 469189^2 + 43174^2 .

It is a cyclic number.

It is not a de Polignac number, because 222002311997 - 2¹⁶ = 222002246461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222002311997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222002311907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001155998 + 111001155999.

It is an arithmetic number, because the mean of its divisors is an integer number (111001155999).

Almost surely, 2^222002311997 is an apocalyptic number.

It is an amenable number.

222002311997 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002311997 is an equidigital number, since it uses as much as digits as its factorization.

222002311997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 222002311997 in words is "two hundred twenty-two billion, two million, three hundred eleven thousand, nine hundred ninety-seven".