1226115199 has 2 divisors, whose sum is σ = 1226115200. Its totient is φ = 1226115198.

The previous prime is 1226115173. The next prime is 1226115203. The reversal of 1226115199 is 9915116221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1226115199 - 2¹³ = 1226107007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226115299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613057599 + 613057600.

It is an arithmetic number, because the mean of its divisors is an integer number (613057600).

Almost surely, 2^1226115199 is an apocalyptic number.

1226115199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226115199 is an equidigital number, since it uses as much as digits as its factorization.

1226115199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 37.

The square root of 1226115199 is about 35015.9277900786. The cubic root of 1226115199 is about 1070.3120756816.

The spelling of 1226115199 in words is "one billion, two hundred twenty-six million, one hundred fifteen thousand, one hundred ninety-nine".