1199222379 has 12 divisors (see below), whose sum is σ = 1732887000. Its totient is φ = 799169184.

The previous prime is 1199222359. The next prime is 1199222393. The reversal of 1199222379 is 9732229911.

It is not a de Polignac number, because 1199222379 - 2¹⁵ = 1199189611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1199222309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394 + ... + 48975.

It is an arithmetic number, because the mean of its divisors is an integer number (144407250).

Almost surely, 2^1199222379 is an apocalyptic number.

1199222379 is a deficient number, since it is larger than the sum of its proper divisors (533664621).

1199222379 is a wasteful number, since it uses less digits than its factorization.

1199222379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52074 (or 52071 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 1199222379 is about 34629.7903401103. The cubic root of 1199222379 is about 1062.4289791329.

The spelling of 1199222379 in words is "one billion, one hundred ninety-nine million, two hundred twenty-two thousand, three hundred seventy-nine".