12227641 has 8 divisors (see below), whose sum is σ = 12993480. Its totient is φ = 11467008.

The previous prime is 12227627. The next prime is 12227681. The reversal of 12227641 is 14672221.

12227641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5625 + 12222016 = 75^2 + 3496^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12227641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12227681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4255 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (1624185).

Almost surely, 2^12227641 is an apocalyptic number.

It is an amenable number.

12227641 is a deficient number, since it is larger than the sum of its proper divisors (765839).

12227641 is a wasteful number, since it uses less digits than its factorization.

12227641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603.

The product of its digits is 1344, while the sum is 25.

The square root of 12227641 is about 3496.8043983043. The cubic root of 12227641 is about 230.3814778324.

Adding to 12227641 its product of digits (1344), we get a triangular number (12228985 = T₄₉₄₅).

Adding to 12227641 its reverse (14672221), we get a palindrome (26899862).

The spelling of 12227641 in words is "twelve million, two hundred twenty-seven thousand, six hundred forty-one".