1112222999 has 2 divisors, whose sum is σ = 1112223000. Its totient is φ = 1112222998.

The previous prime is 1112222971. The next prime is 1112223041. The reversal of 1112222999 is 9992222111.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9992222111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1112222999 - 2¹⁶ = 1112157463 is a prime.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112222959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556111499 + 556111500.

It is an arithmetic number, because the mean of its divisors is an integer number (556111500).

Almost surely, 2^1112222999 is an apocalyptic number.

1112222999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112222999 is an equidigital number, since it uses as much as digits as its factorization.

1112222999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 38.

The square root of 1112222999 is about 33350.0074812585. The cubic root of 1112222999 is about 1036.0895428908.

The spelling of 1112222999 in words is "one billion, one hundred twelve million, two hundred twenty-two thousand, nine hundred ninety-nine".