222221320589 has 2 divisors, whose sum is σ = 222221320590. Its totient is φ = 222221320588.

The previous prime is 222221320571. The next prime is 222221320649. The reversal of 222221320589 is 985023122222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126085357225 + 96135963364 = 355085^2 + 310058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222221320589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222221323589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110660294 + 111110660295.

It is an arithmetic number, because the mean of its divisors is an integer number (111110660295).

Almost surely, 2^222221320589 is an apocalyptic number.

It is an amenable number.

222221320589 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221320589 is an equidigital number, since it uses as much as digits as its factorization.

222221320589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 222221320589 in words is "two hundred twenty-two billion, two hundred twenty-one million, three hundred twenty thousand, five hundred eighty-nine".