131022224 has 20 divisors (see below), whose sum is σ = 260048460. Its totient is φ = 63912960.

The previous prime is 131022187. The next prime is 131022259. The reversal of 131022224 is 422220131.

131022224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13690000 + 117332224 = 3700^2 + 10832^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99209 + ... + 100520.

It is an arithmetic number, because the mean of its divisors is an integer number (13002423).

Almost surely, 2^131022224 is an apocalyptic number.

It is an amenable number.

131022224 is a deficient number, since it is larger than the sum of its proper divisors (129026236).

131022224 is a wasteful number, since it uses less digits than its factorization.

131022224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199778 (or 199772 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 131022224 is about 11446.4939610345. The cubic root of 131022224 is about 507.9040263441.

Adding to 131022224 its reverse (422220131), we get a palindrome (553242355).

The spelling of 131022224 in words is "one hundred thirty-one million, twenty-two thousand, two hundred twenty-four".