222222122989 has 2 divisors, whose sum is σ = 222222122990. Its totient is φ = 222222122988.

The previous prime is 222222122981. The next prime is 222222123001. The reversal of 222222122989 is 989221222222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172986950889 + 49235172100 = 415917^2 + 221890^2 .

It is a cyclic number.

It is not a de Polignac number, because 222222122989 - 2³ = 222222122981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222222122981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111061494 + 111111061495.

It is an arithmetic number, because the mean of its divisors is an integer number (111111061495).

Almost surely, 2^222222122989 is an apocalyptic number.

It is an amenable number.

222222122989 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222122989 is an equidigital number, since it uses as much as digits as its factorization.

222222122989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The spelling of 222222122989 in words is "two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-two thousand, nine hundred eighty-nine".