12522422 has 8 divisors (see below), whose sum is σ = 20491272. Its totient is φ = 5692000.

The previous prime is 12522413. The next prime is 12522427. The reversal of 12522422 is 22422521.

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

It is a super-2 number, since 2×12522422² = 313622105492168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12522394 and 12522403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522427) 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, 284579 + ... + 284622.

It is an arithmetic number, because the mean of its divisors is an integer number (2561409).

Almost surely, 2^12522422 is an apocalyptic number.

12522422 is a deficient number, since it is larger than the sum of its proper divisors (7968850).

12522422 is a wasteful number, since it uses less digits than its factorization.

12522422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569214.

The product of its digits is 640, while the sum is 20.

The square root of 12522422 is about 3538.7034348755. The cubic root of 12522422 is about 232.2181237327.

Adding to 12522422 its reverse (22422521), we get a palindrome (34944943).

Subtracting 12522422 from its reverse (22422521), we obtain a palindrome (9900099).

The spelling of 12522422 in words is "twelve million, five hundred twenty-two thousand, four hundred twenty-two".