22131310 has 16 divisors (see below), whose sum is σ = 40046256. Its totient is φ = 8805888.

The previous prime is 22131289. The next prime is 22131397. The reversal of 22131310 is 1313122.

It is a super-2 number, since 2×22131310² = 979589764632200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3804 + ... + 7663.

It is an arithmetic number, because the mean of its divisors is an integer number (2502891).

Almost surely, 2^22131310 is an apocalyptic number.

22131310 is a deficient number, since it is larger than the sum of its proper divisors (17914946).

22131310 is a wasteful number, since it uses less digits than its factorization.

22131310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11667.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 22131310 is about 4704.3926281721. The cubic root of 22131310 is about 280.7603060614.

Adding to 22131310 its reverse (1313122), we get a palindrome (23444432).

It can be divided in two parts, 2 and 2131310, that added together give a palindrome (2131312).

The spelling of 22131310 in words is "twenty-two million, one hundred thirty-one thousand, three hundred ten".