2197109111 has 8 divisors (see below), whose sum is σ = 2213291520. Its totient is φ = 2180959992.

The previous prime is 2197109093. The next prime is 2197109119. The reversal of 2197109111 is 1119017912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2197109111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197109119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132860 + ... + 148478.

It is an arithmetic number, because the mean of its divisors is an integer number (276661440).

Almost surely, 2^2197109111 is an apocalyptic number.

2197109111 is a deficient number, since it is larger than the sum of its proper divisors (16182409).

2197109111 is a wasteful number, since it uses less digits than its factorization.

2197109111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16645.

The product of its (nonzero) digits is 1134, while the sum is 32.

The square root of 2197109111 is about 46873.3304876024. The cubic root of 2197109111 is about 1300.0215205510.

The spelling of 2197109111 in words is "two billion, one hundred ninety-seven million, one hundred nine thousand, one hundred eleven".