12831022 has 24 divisors (see below), whose sum is σ = 20777760. Its totient is φ = 5940480.

The previous prime is 12831001. The next prime is 12831029. The reversal of 12831022 is 22013821.

12831022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12831029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45522 + ... + 45802.

It is an arithmetic number, because the mean of its divisors is an integer number (865740).

Almost surely, 2^12831022 is an apocalyptic number.

12831022 is a deficient number, since it is larger than the sum of its proper divisors (7946738).

12831022 is a wasteful number, since it uses less digits than its factorization.

12831022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12831022 is about 3582.0415966317. The cubic root of 12831022 is about 234.1102434243.

Adding to 12831022 its reverse (22013821), we get a palindrome (34844843).

The spelling of 12831022 in words is "twelve million, eight hundred thirty-one thousand, twenty-two".