12750022 has 8 divisors (see below), whose sum is σ = 19166400. Its totient is φ = 6361224.

The previous prime is 12750011. The next prime is 12750071. The reversal of 12750022 is 22005721.

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

It is a super-2 number, since 2×12750022² = 325126122000968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5697 + ... + 7612.

It is an arithmetic number, because the mean of its divisors is an integer number (2395800).

Almost surely, 2^12750022 is an apocalyptic number.

12750022 is a deficient number, since it is larger than the sum of its proper divisors (6416378).

12750022 is a wasteful number, since it uses less digits than its factorization.

12750022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13790.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 12750022 is about 3570.7172948863. The cubic root of 12750022 is about 233.6165707853.

Adding to 12750022 its reverse (22005721), we get a palindrome (34755743).

The spelling of 12750022 in words is "twelve million, seven hundred fifty thousand, twenty-two".