222200989 has 2 divisors, whose sum is σ = 222200990. Its totient is φ = 222200988.

The previous prime is 222200983. The next prime is 222201019. The reversal of 222200989 is 989002222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157076089 + 65124900 = 12533^2 + 8070^2 .

It is a cyclic number.

It is not a de Polignac number, because 222200989 - 2³ = 222200981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222200981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111100494 + 111100495.

It is an arithmetic number, because the mean of its divisors is an integer number (111100495).

Almost surely, 2^222200989 is an apocalyptic number.

It is an amenable number.

222200989 is a deficient number, since it is larger than the sum of its proper divisors (1).

222200989 is an equidigital number, since it uses as much as digits as its factorization.

222200989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 222200989 is about 14906.4076490615. The cubic root of 222200989 is about 605.6875720002.

The spelling of 222200989 in words is "two hundred twenty-two million, two hundred thousand, nine hundred eighty-nine".