12121267 has 2 divisors, whose sum is σ = 12121268. Its totient is φ = 12121266.

The previous prime is 12121231. The next prime is 12121273. The reversal of 12121267 is 76212121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12121267 - 2¹⁵ = 12088499 is a prime.

It is a super-2 number, since 2×12121267² = 293850227370578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12121367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060633 + 6060634.

It is an arithmetic number, because the mean of its divisors is an integer number (6060634).

Almost surely, 2^12121267 is an apocalyptic number.

12121267 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121267 is an equidigital number, since it uses as much as digits as its factorization.

12121267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 22.

The square root of 12121267 is about 3481.5610004709. The cubic root of 12121267 is about 229.7114655327.

Adding to 12121267 its reverse (76212121), we get a palindrome (88333388).

The spelling of 12121267 in words is "twelve million, one hundred twenty-one thousand, two hundred sixty-seven".