224221131 has 12 divisors (see below), whose sum is σ = 324546352. Its totient is φ = 149170896.

The previous prime is 224221121. The next prime is 224221133. The reversal of 224221131 is 131122422.

It is a happy number.

It is not a de Polignac number, because 224221131 - 2⁷ = 224221003 is a prime.

It is a super-2 number, since 2×224221131² = 100550231173838322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224221133) 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, 21196 + ... + 29961.

Almost surely, 2^224221131 is an apocalyptic number.

224221131 is a deficient number, since it is larger than the sum of its proper divisors (100325221).

224221131 is a wasteful number, since it uses less digits than its factorization.

224221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51650 (or 51647 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 224221131 is about 14974.0151929935. The cubic root of 224221131 is about 607.5175750644.

Adding to 224221131 its reverse (131122422), we get a palindrome (355343553).

The spelling of 224221131 in words is "two hundred twenty-four million, two hundred twenty-one thousand, one hundred thirty-one".