12722571 has 24 divisors (see below), whose sum is σ = 19768320. Its totient is φ = 7859376.

The previous prime is 12722543. The next prime is 12722573. The reversal of 12722571 is 17522721.

12722571 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12722571 - 2¹³ = 12714379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12722573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7246 + ... + 8828.

It is an arithmetic number, because the mean of its divisors is an integer number (823680).

Almost surely, 2^12722571 is an apocalyptic number.

12722571 is a deficient number, since it is larger than the sum of its proper divisors (7045749).

12722571 is a wasteful number, since it uses less digits than its factorization.

12722571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655 (or 1652 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 12722571 is about 3566.8713181162. The cubic root of 12722571 is about 233.4487902530.

The spelling of 12722571 in words is "twelve million, seven hundred twenty-two thousand, five hundred seventy-one".