12228571 has 8 divisors (see below), whose sum is σ = 13432320. Its totient is φ = 11080872.

The previous prime is 12228563. The next prime is 12228577. The reversal of 12228571 is 17582221.

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 12228571 - 2³ = 12228563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12228577) 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, 13555 + ... + 14428.

It is an arithmetic number, because the mean of its divisors is an integer number (1679040).

Almost surely, 2^12228571 is an apocalyptic number.

12228571 is a deficient number, since it is larger than the sum of its proper divisors (1203749).

12228571 is a wasteful number, since it uses less digits than its factorization.

12228571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28025.

The product of its digits is 2240, while the sum is 28.

The square root of 12228571 is about 3496.9373743320. The cubic root of 12228571 is about 230.3873184069.

The spelling of 12228571 in words is "twelve million, two hundred twenty-eight thousand, five hundred seventy-one".