1199211097 has 16 divisors (see below), whose sum is σ = 1391982592. Its totient is φ = 1011916800.

The previous prime is 1199211067. The next prime is 1199211121. The reversal of 1199211097 is 7901129911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1199211097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1199211067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126472 + ... + 135622.

It is an arithmetic number, because the mean of its divisors is an integer number (86998912).

Almost surely, 2^1199211097 is an apocalyptic number.

It is an amenable number.

1199211097 is a deficient number, since it is larger than the sum of its proper divisors (192771495).

1199211097 is an equidigital number, since it uses as much as digits as its factorization.

1199211097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9448.

The product of its (nonzero) digits is 10206, while the sum is 40.

The square root of 1199211097 is about 34629.6274452960. The cubic root of 1199211097 is about 1062.4256474291.

The spelling of 1199211097 in words is "one billion, one hundred ninety-nine million, two hundred eleven thousand, ninety-seven".