12211633 has 6 divisors (see below), whose sum is σ = 14205426. Its totient is φ = 10467072.

The previous prime is 12211603. The next prime is 12211657. The reversal of 12211633 is 33611221.

It can be written as a sum of positive squares in only one way, i.e., 7225344 + 4986289 = 2688^2 + 2233^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12211633 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 12211633.

It is not an unprimeable number, because it can be changed into a prime (12211603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124560 + ... + 124657.

It is an arithmetic number, because the mean of its divisors is an integer number (2367571).

Almost surely, 2^12211633 is an apocalyptic number.

It is an amenable number.

12211633 is a deficient number, since it is larger than the sum of its proper divisors (1993793).

12211633 is an equidigital number, since it uses as much as digits as its factorization.

12211633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249231 (or 249224 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 12211633 is about 3494.5147016431. The cubic root of 12211633 is about 230.2808981364.

Adding to 12211633 its reverse (33611221), we get a palindrome (45822854).

The spelling of 12211633 in words is "twelve million, two hundred eleven thousand, six hundred thirty-three".