12522112 has 16 divisors (see below), whose sum is σ = 24946650. Its totient is φ = 6260992.

The previous prime is 12522091. The next prime is 12522131. The reversal of 12522112 is 21122521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9884736 + 2637376 = 3144^2 + 1624^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48787 + ... + 49042.

Almost surely, 2^12522112 is an apocalyptic number.

It is an amenable number.

12522112 is a deficient number, since it is larger than the sum of its proper divisors (12424538).

12522112 is an frugal number, since it uses more digits than its factorization.

12522112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97843 (or 97831 counting only the distinct ones).

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

The square root of 12522112 is about 3538.6596332510. The cubic root of 12522112 is about 232.2162074843.

Adding to 12522112 its reverse (21122521), we get a palindrome (33644633).

It can be divided in two parts, 1252 and 2112, that added together give a square (3364 = 58²).

The spelling of 12522112 in words is "twelve million, five hundred twenty-two thousand, one hundred twelve".