12500022 has 16 divisors (see below), whose sum is σ = 25055280. Its totient is φ = 4157472.

The previous prime is 12500003. The next prime is 12500029. The reversal of 12500022 is 22000521.

It is a junction number, because it is equal to n+sod(n) for n = 12499980 and 12500007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008 + ... + 5100.

It is an arithmetic number, because the mean of its divisors is an integer number (1565955).

Almost surely, 2^12500022 is an apocalyptic number.

12500022 is an abundant number, since it is smaller than the sum of its proper divisors (12555258).

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

12500022 is a wasteful number, since it uses less digits than its factorization.

12500022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 12500022 is about 3535.5370172012. The cubic root of 12500022 is about 232.0795778338.

Adding to 12500022 its reverse (22000521), we get a palindrome (34500543).

The spelling of 12500022 in words is "twelve million, five hundred thousand, twenty-two".