12122887 has 8 divisors (see below), whose sum is σ = 14669856. Its totient is φ = 9779712.

The previous prime is 12122879. The next prime is 12122933. The reversal of 12122887 is 78822121.

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 12122887 - 2³ = 12122879 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 (12122807) 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, 50818 + ... + 51055.

It is an arithmetic number, because the mean of its divisors is an integer number (1833732).

Almost surely, 2^12122887 is an apocalyptic number.

12122887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12122887 is a deficient number, since it is larger than the sum of its proper divisors (2546969).

12122887 is a wasteful number, since it uses less digits than its factorization.

12122887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101897.

The product of its digits is 3584, while the sum is 31.

The square root of 12122887 is about 3481.7936469584. The cubic root of 12122887 is about 229.7216986763.

The spelling of 12122887 in words is "twelve million, one hundred twenty-two thousand, eight hundred eighty-seven".