12504222032 has 10 divisors (see below), whose sum is σ = 24226930218. Its totient is φ = 6252111008.

The previous prime is 12504221999. The next prime is 12504222043. The reversal of 12504222032 is 23022240521.

It can be written as a sum of positive squares in only one way, i.e., 10425226816 + 2078995216 = 102104^2 + 45596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12504221989 and 12504222007.

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, 390756923 + ... + 390756954.

Almost surely, 2^12504222032 is an apocalyptic number.

It is an amenable number.

12504222032 is a deficient number, since it is larger than the sum of its proper divisors (11722708186).

12504222032 is an equidigital number, since it uses as much as digits as its factorization.

12504222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781513885 (or 781513879 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 12504222032 its reverse (23022240521), we get a palindrome (35526462553).

The spelling of 12504222032 in words is "twelve billion, five hundred four million, two hundred twenty-two thousand, thirty-two".