12261107 has 4 divisors (see below), whose sum is σ = 12278880. Its totient is φ = 12243336.

The previous prime is 12261101. The next prime is 12261127. The reversal of 12261107 is 70116221.

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

It is a cyclic number.

It is not a de Polignac number, because 12261107 - 2⁶ = 12261043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12261101) 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, 7808 + ... + 9245.

It is an arithmetic number, because the mean of its divisors is an integer number (3069720).

Almost surely, 2^12261107 is an apocalyptic number.

12261107 is a deficient number, since it is larger than the sum of its proper divisors (17773).

12261107 is an equidigital number, since it uses as much as digits as its factorization.

12261107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17772.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 12261107 is about 3501.5863547826. The cubic root of 12261107 is about 230.5914644628.

Adding to 12261107 its reverse (70116221), we get a palindrome (82377328).

The spelling of 12261107 in words is "twelve million, two hundred sixty-one thousand, one hundred seven".