12211149 has 4 divisors (see below), whose sum is σ = 16281536. Its totient is φ = 8140764.

The previous prime is 12211141. The next prime is 12211159. The reversal of 12211149 is 94111221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94111221 = 3 ⋅31370407.

It is not a de Polignac number, because 12211149 - 2³ = 12211141 is a prime.

It is a super-2 number, since 2×12211149² = 298224319800402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211141) 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, 2035189 + ... + 2035194.

It is an arithmetic number, because the mean of its divisors is an integer number (4070384).

Almost surely, 2^12211149 is an apocalyptic number.

It is an amenable number.

12211149 is a deficient number, since it is larger than the sum of its proper divisors (4070387).

12211149 is an equidigital number, since it uses as much as digits as its factorization.

12211149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070386.

The product of its digits is 144, while the sum is 21.

The square root of 12211149 is about 3494.4454495671. The cubic root of 12211149 is about 230.2778557524.

The spelling of 12211149 in words is "twelve million, two hundred eleven thousand, one hundred forty-nine".