12122669 has 4 divisors (see below), whose sum is σ = 13055196. Its totient is φ = 11190144.

The previous prime is 12122659. The next prime is 12122723. The reversal of 12122669 is 96622121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5822569 + 6300100 = 2413^2 + 2510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12122669 is a prime.

It is a super-2 number, since 2×12122669² = 293918207367122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122639) 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, 466244 + ... + 466269.

It is an arithmetic number, because the mean of its divisors is an integer number (3263799).

Almost surely, 2^12122669 is an apocalyptic number.

It is an amenable number.

12122669 is a deficient number, since it is larger than the sum of its proper divisors (932527).

12122669 is an equidigital number, since it uses as much as digits as its factorization.

12122669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932526.

The product of its digits is 2592, while the sum is 29.

The square root of 12122669 is about 3481.7623411141. The cubic root of 12122669 is about 229.7203216768.

The spelling of 12122669 in words is "twelve million, one hundred twenty-two thousand, six hundred sixty-nine".