232221042 has 12 divisors (see below), whose sum is σ = 503145630. Its totient is φ = 77407008.

The previous prime is 232221013. The next prime is 232221061. The reversal of 232221042 is 240122232.

It can be written as a sum of positive squares in only one way, i.e., 220789881 + 11431161 = 14859^2 + 3381^2 .

It is a super-2 number, since 2×232221042² = 107853224695131528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12901169 = 232221042 / (2 + 3 + 2 + 2 + 2 + 1 + 0 + 4 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6450567 + ... + 6450602.

Almost surely, 2^232221042 is an apocalyptic number.

232221042 is an abundant number, since it is smaller than the sum of its proper divisors (270924588).

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

232221042 is a wasteful number, since it uses less digits than its factorization.

232221042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12901177 (or 12901174 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 232221042 is about 15238.8005433499. The cubic root of 232221042 is about 614.6584500486.

Adding to 232221042 its reverse (240122232), we get a palindrome (472343274).

The spelling of 232221042 in words is "two hundred thirty-two million, two hundred twenty-one thousand, forty-two".