22204231 has 8 divisors (see below), whose sum is σ = 25404800. Its totient is φ = 19010808.

The previous prime is 22204229. The next prime is 22204241. The reversal of 22204231 is 13240222.

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 22204231 - 2¹ = 22204229 is a prime.

It is a super-2 number, since 2×22204231² = 986055748602722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204241) 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, 10960 + ... + 12826.

It is an arithmetic number, because the mean of its divisors is an integer number (3175600).

Almost surely, 2^22204231 is an apocalyptic number.

22204231 is a deficient number, since it is larger than the sum of its proper divisors (3200569).

22204231 is a wasteful number, since it uses less digits than its factorization.

22204231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22204231 is about 4712.1365642350. The cubic root of 22204231 is about 281.0683293601.

Adding to 22204231 its reverse (13240222), we get a palindrome (35444453).

The spelling of 22204231 in words is "twenty-two million, two hundred four thousand, two hundred thirty-one".