22231263 has 8 divisors (see below), whose sum is σ = 29808000. Its totient is φ = 14737688.

The previous prime is 22231241. The next prime is 22231331. The reversal of 22231263 is 36213222.

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

It is a cyclic number.

It is not a de Polignac number, because 22231263 - 2⁶ = 22231199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20163 + ... + 21236.

It is an arithmetic number, because the mean of its divisors is an integer number (3726000).

Almost surely, 2^22231263 is an apocalyptic number.

22231263 is a deficient number, since it is larger than the sum of its proper divisors (7576737).

22231263 is a wasteful number, since it uses less digits than its factorization.

22231263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41581.

The product of its digits is 864, while the sum is 21.

The square root of 22231263 is about 4715.0040296907. The cubic root of 22231263 is about 281.1823430345.

Adding to 22231263 its reverse (36213222), we get a palindrome (58444485).

It can be divided in two parts, 2223 and 1263, that added together give a triangular number (3486 = T₈₃).

The spelling of 22231263 in words is "twenty-two million, two hundred thirty-one thousand, two hundred sixty-three".