1122378899 has 2 divisors, whose sum is σ = 1122378900. Its totient is φ = 1122378898.

The previous prime is 1122378857. The next prime is 1122378953. The reversal of 1122378899 is 9988732211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1122378899 - 2⁸ = 1122378643 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1122375899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561189449 + 561189450.

It is an arithmetic number, because the mean of its divisors is an integer number (561189450).

Almost surely, 2^1122378899 is an apocalyptic number.

1122378899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122378899 is an equidigital number, since it uses as much as digits as its factorization.

1122378899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 50.

The square root of 1122378899 is about 33501.9238104321. The cubic root of 1122378899 is about 1039.2335634505.

The spelling of 1122378899 in words is "one billion, one hundred twenty-two million, three hundred seventy-eight thousand, eight hundred ninety-nine".