12881222 has 8 divisors (see below), whose sum is σ = 19445376. Its totient is φ = 6399432.

The previous prime is 12881207. The next prime is 12881251. The reversal of 12881222 is 22218821.

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

It is a junction number, because it is equal to n+sod(n) for n = 12881191 and 12881200.

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, 20198 + ... + 20825.

It is an arithmetic number, because the mean of its divisors is an integer number (2430672).

Almost surely, 2^12881222 is an apocalyptic number.

12881222 is a deficient number, since it is larger than the sum of its proper divisors (6564154).

12881222 is a wasteful number, since it uses less digits than its factorization.

12881222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41182.

The product of its digits is 1024, while the sum is 26.

The square root of 12881222 is about 3589.0419334413. The cubic root of 12881222 is about 234.4151565446.

It can be divided in two parts, 12881 and 222, that multiplied together give a palindrome (2859582).

The spelling of 12881222 in words is "twelve million, eight hundred eighty-one thousand, two hundred twenty-two".