11212099 has 4 divisors (see below), whose sum is σ = 11223160. Its totient is φ = 11201040.

The previous prime is 11212081. The next prime is 11212127. The reversal of 11212099 is 99021211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11212099 - 2¹⁵ = 11179331 is a prime.

It is a super-2 number, since 2×11212099² = 251422327971602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11252099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3837 + ... + 6094.

It is an arithmetic number, because the mean of its divisors is an integer number (2805790).

Almost surely, 2^11212099 is an apocalyptic number.

11212099 is a deficient number, since it is larger than the sum of its proper divisors (11061).

11212099 is an equidigital number, since it uses as much as digits as its factorization.

11212099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 11212099 is about 3348.4472520857. The cubic root of 11212099 is about 223.8183250033.

The spelling of 11212099 in words is "eleven million, two hundred twelve thousand, ninety-nine".