12220967 has 4 divisors (see below), whose sum is σ = 13331976. Its totient is φ = 11109960.

The previous prime is 12220951. The next prime is 12220969. The reversal of 12220967 is 76902221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76902221 = 11 ⋅6991111.

It is a cyclic number.

It is not a de Polignac number, because 12220967 - 2⁴ = 12220951 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 (12220969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555488 + ... + 555509.

It is an arithmetic number, because the mean of its divisors is an integer number (3332994).

Almost surely, 2^12220967 is an apocalyptic number.

12220967 is a deficient number, since it is larger than the sum of its proper divisors (1111009).

12220967 is a wasteful number, since it uses less digits than its factorization.

12220967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111008.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 12220967 is about 3495.8499681766. The cubic root of 12220967 is about 230.3395551697.

The spelling of 12220967 in words is "twelve million, two hundred twenty thousand, nine hundred sixty-seven".