12117026 has 4 divisors (see below), whose sum is σ = 18175542. Its totient is φ = 6058512.

The previous prime is 12117011. The next prime is 12117031. The reversal of 12117026 is 62071121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62071121 = 7 ⋅8867303.

It can be written as a sum of positive squares in only one way, i.e., 11868025 + 249001 = 3445^2 + 499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12116989 and 12117007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3029255 + ... + 3029258.

Almost surely, 2^12117026 is an apocalyptic number.

12117026 is a deficient number, since it is larger than the sum of its proper divisors (6058516).

12117026 is an equidigital number, since it uses as much as digits as its factorization.

12117026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058515.

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

The square root of 12117026 is about 3480.9518813106. The cubic root of 12117026 is about 229.6846718550.

Adding to 12117026 its reverse (62071121), we get a palindrome (74188147).

The spelling of 12117026 in words is "twelve million, one hundred seventeen thousand, twenty-six".