222112120110689 has 2 divisors, whose sum is σ = 222112120110690. Its totient is φ = 222112120110688.

The previous prime is 222112120110679. The next prime is 222112120110691. The reversal of 222112120110689 is 986011021211222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192588198088225 + 29523922022464 = 13877615^2 + 5433592^2 .

It is a cyclic number.

It is not a de Polignac number, because 222112120110689 - 2³⁶ = 222043400633953 is a prime.

It is a super-2 number, since 2×222112120110689² (a number of 29 digits) contains 22 as substring.

Together with 222112120110691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222112120110619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056060055344 + 111056060055345.

It is an arithmetic number, because the mean of its divisors is an integer number (111056060055345).

Almost surely, 2^{222112120110689} is an apocalyptic number.

It is an amenable number.

222112120110689 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112120110689 is an equidigital number, since it uses as much as digits as its factorization.

222112120110689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 38.

The spelling of 222112120110689 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty million, one hundred ten thousand, six hundred eighty-nine".