22131260 has 12 divisors (see below), whose sum is σ = 46475688. Its totient is φ = 8852496.

The previous prime is 22131259. The next prime is 22131269. The reversal of 22131260 is 6213122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553262 + ... + 553301.

It is an arithmetic number, because the mean of its divisors is an integer number (3872974).

Almost surely, 2^22131260 is an apocalyptic number.

22131260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22131260 is an abundant number, since it is smaller than the sum of its proper divisors (24344428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22131260 is a wasteful number, since it uses less digits than its factorization.

22131260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106572 (or 1106570 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 22131260 is about 4704.3873139868. The cubic root of 22131260 is about 280.7600946260.

Adding to 22131260 its reverse (6213122), we get a palindrome (28344382).

The spelling of 22131260 in words is "twenty-two million, one hundred thirty-one thousand, two hundred sixty".