12220667 has 8 divisors (see below), whose sum is σ = 12910800. Its totient is φ = 11535264.

The previous prime is 12220661. The next prime is 12220669. The reversal of 12220667 is 76602221.

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 12220667 - 2⁴ = 12220651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220661) 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, 5009 + ... + 7037.

It is an arithmetic number, because the mean of its divisors is an integer number (1613850).

Almost surely, 2^12220667 is an apocalyptic number.

12220667 is a deficient number, since it is larger than the sum of its proper divisors (690133).

12220667 is a wasteful number, since it uses less digits than its factorization.

12220667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 12220667 is about 3495.8070598933. The cubic root of 12220667 is about 230.3376703643.

Adding to 12220667 its reverse (76602221), we get a palindrome (88822888).

The spelling of 12220667 in words is "twelve million, two hundred twenty thousand, six hundred sixty-seven".