12722270 has 16 divisors (see below), whose sum is σ = 24982128. Its totient is φ = 4626240.

The previous prime is 12722261. The next prime is 12722287. The reversal of 12722270 is 7222721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57719 + ... + 57938.

It is an arithmetic number, because the mean of its divisors is an integer number (1561383).

Almost surely, 2^12722270 is an apocalyptic number.

12722270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12722270 is a deficient number, since it is larger than the sum of its proper divisors (12259858).

12722270 is a wasteful number, since it uses less digits than its factorization.

12722270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115675.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 12722270 is about 3566.8291240260. The cubic root of 12722270 is about 233.4469492037.

Adding to 12722270 its reverse (7222721), we get a palindrome (19944991).

The spelling of 12722270 in words is "twelve million, seven hundred twenty-two thousand, two hundred seventy".