12122047 has 4 divisors (see below), whose sum is σ = 13853776. Its totient is φ = 10390320.

The previous prime is 12122041. The next prime is 12122063. The reversal of 12122047 is 74022121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74022121 = 653 ⋅113357.

It is a cyclic number.

It is not a de Polignac number, because 12122047 - 2³ = 12122039 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 (12122041) 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, 865854 + ... + 865867.

It is an arithmetic number, because the mean of its divisors is an integer number (3463444).

Almost surely, 2^12122047 is an apocalyptic number.

12122047 is a deficient number, since it is larger than the sum of its proper divisors (1731729).

12122047 is an equidigital number, since it uses as much as digits as its factorization.

12122047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731728.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 12122047 is about 3481.6730173869. The cubic root of 12122047 is about 229.7163927157.

Adding to 12122047 its reverse (74022121), we get a palindrome (86144168).

The spelling of 12122047 in words is "twelve million, one hundred twenty-two thousand, forty-seven".