12760221 has 8 divisors (see below), whose sum is σ = 17057664. Its totient is φ = 8484800.

The previous prime is 12760219. The next prime is 12760243. The reversal of 12760221 is 12206721.

12760221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12760221 - 2¹ = 12760219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12760271) 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, 4101 + ... + 6506.

It is an arithmetic number, because the mean of its divisors is an integer number (2132208).

Almost surely, 2^12760221 is an apocalyptic number.

It is an amenable number.

12760221 is a deficient number, since it is larger than the sum of its proper divisors (4297443).

12760221 is a wasteful number, since it uses less digits than its factorization.

12760221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12760221 is about 3572.1451538256. The cubic root of 12760221 is about 233.6788457204.

Adding to 12760221 its reverse (12206721), we get a palindrome (24966942).

The spelling of 12760221 in words is "twelve million, seven hundred sixty thousand, two hundred twenty-one".