11212999 has 4 divisors (see below), whose sum is σ = 12814864. Its totient is φ = 9611136.

The previous prime is 11212997. The next prime is 11213057. The reversal of 11212999 is 99921211.

11212999 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11212999 - 2¹ = 11212997 is a prime.

It is a Duffinian number.

11212999 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800922 + ... + 800935.

It is an arithmetic number, because the mean of its divisors is an integer number (3203716).

Almost surely, 2^11212999 is an apocalyptic number.

11212999 is a deficient number, since it is larger than the sum of its proper divisors (1601865).

11212999 is an equidigital number, since it uses as much as digits as its factorization.

11212999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601864.

The product of its digits is 2916, while the sum is 34.

The square root of 11212999 is about 3348.5816400381. The cubic root of 11212999 is about 223.8243135074.

The spelling of 11212999 in words is "eleven million, two hundred twelve thousand, nine hundred ninety-nine".