12512122 has 8 divisors (see below), whose sum is σ = 21449376. Its totient is φ = 5362332.

The previous prime is 12512113. The next prime is 12512147. The reversal of 12512122 is 22121521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12512096 and 12512105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446848 + ... + 446875.

It is an arithmetic number, because the mean of its divisors is an integer number (2681172).

Almost surely, 2^12512122 is an apocalyptic number.

12512122 is a deficient number, since it is larger than the sum of its proper divisors (8937254).

12512122 is an equidigital number, since it uses as much as digits as its factorization.

12512122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893732.

The product of its digits is 80, while the sum is 16.

The square root of 12512122 is about 3537.2478001972. The cubic root of 12512122 is about 232.1544378962.

Adding to 12512122 its reverse (22121521), we get a palindrome (34633643).

The spelling of 12512122 in words is "twelve million, five hundred twelve thousand, one hundred twenty-two".