222443121389 has 2 divisors, whose sum is σ = 222443121390. Its totient is φ = 222443121388.

The previous prime is 222443121377. The next prime is 222443121409. The reversal of 222443121389 is 983121344222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221845710025 + 597411364 = 471005^2 + 24442^2 .

It is a cyclic number.

It is not a de Polignac number, because 222443121389 - 2⁸ = 222443121133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222443121359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111221560694 + 111221560695.

It is an arithmetic number, because the mean of its divisors is an integer number (111221560695).

Almost surely, 2^222443121389 is an apocalyptic number.

It is an amenable number.

222443121389 is a deficient number, since it is larger than the sum of its proper divisors (1).

222443121389 is an equidigital number, since it uses as much as digits as its factorization.

222443121389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 41.

The spelling of 222443121389 in words is "two hundred twenty-two billion, four hundred forty-three million, one hundred twenty-one thousand, three hundred eighty-nine".