2112223279 has 2 divisors, whose sum is σ = 2112223280. Its totient is φ = 2112223278.

The previous prime is 2112223277. The next prime is 2112223283. The reversal of 2112223279 is 9723222112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112223279 - 2¹ = 2112223277 is a prime.

It is a super-2 number, since 2×2112223279² = 8922974360699023682, which contains 22 as substring.

Together with 2112223277, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2112223279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112223277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056111639 + 1056111640.

It is an arithmetic number, because the mean of its divisors is an integer number (1056111640).

Almost surely, 2^2112223279 is an apocalyptic number.

2112223279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112223279 is an equidigital number, since it uses as much as digits as its factorization.

2112223279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 2112223279 is about 45958.9303509122. The cubic root of 2112223279 is about 1283.0589434769.

The spelling of 2112223279 in words is "two billion, one hundred twelve million, two hundred twenty-three thousand, two hundred seventy-nine".