220231234 has 4 divisors (see below), whose sum is σ = 330346854. Its totient is φ = 110115616.

The previous prime is 220231177. The next prime is 220231259. The reversal of 220231234 is 432132022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 148913209 + 71318025 = 12203^2 + 8445^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55057807 + ... + 55057810.

Almost surely, 2^220231234 is an apocalyptic number.

220231234 is a deficient number, since it is larger than the sum of its proper divisors (110115620).

220231234 is a wasteful number, since it uses less digits than its factorization.

220231234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110115619.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 220231234 is about 14840.1898235838. The cubic root of 220231234 is about 603.8925020303.

Adding to 220231234 its reverse (432132022), we get a palindrome (652363256).

The spelling of 220231234 in words is "two hundred twenty million, two hundred thirty-one thousand, two hundred thirty-four".