12122526 has 32 divisors (see below), whose sum is σ = 26480160. Its totient is φ = 3677184.

The previous prime is 12122507. The next prime is 12122533. The reversal of 12122526 is 62522121.

12122526 = 40² + 41² + ... + 331².

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4630 + ... + 6758.

It is an arithmetic number, because the mean of its divisors is an integer number (827505).

Almost surely, 2^12122526 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12122526, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13240080).

12122526 is an abundant number, since it is smaller than the sum of its proper divisors (14357634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122526 is a wasteful number, since it uses less digits than its factorization.

12122526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220.

The product of its digits is 480, while the sum is 21.

The square root of 12122526 is about 3481.7418054761. The cubic root of 12122526 is about 229.7194184066.

Adding to 12122526 its reverse (62522121), we get a palindrome (74644647).

The spelling of 12122526 in words is "twelve million, one hundred twenty-two thousand, five hundred twenty-six".