2111196997 has 12 divisors (see below), whose sum is σ = 2644797036. Its totient is φ = 1670397120.

The previous prime is 2111196977. The next prime is 2111197009. The reversal of 2111196997 is 7996911112.

It can be written as a sum of positive squares in 2 ways, for example, as 904746241 + 1206450756 = 30079^2 + 34734^2 .

It is not a de Polignac number, because 2111196997 - 2²⁷ = 1976979269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111196947) 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, 1656504 + ... + 1657777.

It is an arithmetic number, because the mean of its divisors is an integer number (220399753).

Almost surely, 2^2111196997 is an apocalyptic number.

It is an amenable number.

2111196997 is a deficient number, since it is larger than the sum of its proper divisors (533600039).

2111196997 is a wasteful number, since it uses less digits than its factorization.

2111196997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314308 (or 3314301 counting only the distinct ones).

The product of its digits is 61236, while the sum is 46.

The square root of 2111196997 is about 45947.7637867176. The cubic root of 2111196997 is about 1282.8511066076.

The spelling of 2111196997 in words is "two billion, one hundred eleven million, one hundred ninety-six thousand, nine hundred ninety-seven".