12500073222 has 32 divisors (see below), whose sum is σ = 30769412352. Its totient is φ = 3296722464.

The previous prime is 12500073217. The next prime is 12500073247. The reversal of 12500073222 is 22237000521.

It is a happy number.

It is a super-2 number, since 2×12500073222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12500073192 and 12500073201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11446408 + ... + 11447499.

It is an arithmetic number, because the mean of its divisors is an integer number (961544136).

Almost surely, 2^12500073222 is an apocalyptic number.

12500073222 is an abundant number, since it is smaller than the sum of its proper divisors (18269339130).

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

12500073222 is a wasteful number, since it uses less digits than its factorization.

12500073222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22893932.

The product of its (nonzero) digits is 1680, while the sum is 24.

Adding to 12500073222 its reverse (22237000521), we get a palindrome (34737073743).

The spelling of 12500073222 in words is "twelve billion, five hundred million, seventy-three thousand, two hundred twenty-two".