12524222 has 4 divisors (see below), whose sum is σ = 18786336. Its totient is φ = 6262110.

The previous prime is 12524207. The next prime is 12524233. The reversal of 12524222 is 22242521.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12524222² = 313712273410568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12524194 and 12524203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3131054 + ... + 3131057.

It is an arithmetic number, because the mean of its divisors is an integer number (4696584).

Almost surely, 2^12524222 is an apocalyptic number.

12524222 is a deficient number, since it is larger than the sum of its proper divisors (6262114).

12524222 is an equidigital number, since it uses as much as digits as its factorization.

12524222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262113.

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

The square root of 12524222 is about 3538.9577561762. The cubic root of 12524222 is about 232.2292497112.

Adding to 12524222 its reverse (22242521), we get a palindrome (34766743).

The spelling of 12524222 in words is "twelve million, five hundred twenty-four thousand, two hundred twenty-two".