222110111989 has 2 divisors, whose sum is σ = 222110111990. Its totient is φ = 222110111988.

The previous prime is 222110111983. The next prime is 222110111999. The reversal of 222110111989 is 989111011222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213971004900 + 8139107089 = 462570^2 + 90217^2 .

It is a cyclic number.

It is not a de Polignac number, because 222110111989 - 2³ = 222110111981 is a prime.

It is a super-2 number, since 2×222110111989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222110111981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055055994 + 111055055995.

It is an arithmetic number, because the mean of its divisors is an integer number (111055055995).

Almost surely, 2^222110111989 is an apocalyptic number.

It is an amenable number.

222110111989 is a deficient number, since it is larger than the sum of its proper divisors (1).

222110111989 is an equidigital number, since it uses as much as digits as its factorization.

222110111989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 37.

The spelling of 222110111989 in words is "two hundred twenty-two billion, one hundred ten million, one hundred eleven thousand, nine hundred eighty-nine".