2112721199 has 2 divisors, whose sum is σ = 2112721200. Its totient is φ = 2112721198.

The previous prime is 2112721151. The next prime is 2112721297. The reversal of 2112721199 is 9911272112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112721199 - 2¹⁶ = 2112655663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112720199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056360599 + 1056360600.

It is an arithmetic number, because the mean of its divisors is an integer number (1056360600).

Almost surely, 2^2112721199 is an apocalyptic number.

2112721199 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112721199 is an equidigital number, since it uses as much as digits as its factorization.

2112721199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 35.

The square root of 2112721199 is about 45964.3470420281. The cubic root of 2112721199 is about 1283.1597551859.

The spelling of 2112721199 in words is "two billion, one hundred twelve million, seven hundred twenty-one thousand, one hundred ninety-nine".