12220567 has 8 divisors (see below), whose sum is σ = 12822624. Its totient is φ = 11624448.

The previous prime is 12220561. The next prime is 12220573. The reversal of 12220567 is 76502221.

It is an interprime number because it is at equal distance from previous prime (12220561) and next prime (12220573).

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-12220567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220561) 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, 3063 + ... + 5815.

It is an arithmetic number, because the mean of its divisors is an integer number (1602828).

Almost surely, 2^12220567 is an apocalyptic number.

12220567 is a deficient number, since it is larger than the sum of its proper divisors (602057).

12220567 is a wasteful number, since it uses less digits than its factorization.

12220567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12220567 is about 3495.7927570152. The cubic root of 12220567 is about 230.3370420890.

Adding to 12220567 its reverse (76502221), we get a palindrome (88722788).

The spelling of 12220567 in words is "twelve million, two hundred twenty thousand, five hundred sixty-seven".