222234520 has 16 divisors (see below), whose sum is σ = 500027760. Its totient is φ = 88893792.

The previous prime is 222234517. The next prime is 222234539. The reversal of 222234520 is 25432222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222234491 and 222234500.

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, 2777892 + ... + 2777971.

It is an arithmetic number, because the mean of its divisors is an integer number (31251735).

Almost surely, 2^222234520 is an apocalyptic number.

222234520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222234520 is an abundant number, since it is smaller than the sum of its proper divisors (277793240).

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

222234520 is a wasteful number, since it uses less digits than its factorization.

222234520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555874 (or 5555870 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 222234520 is about 14907.5323242983. The cubic root of 222234520 is about 605.7180373439.

Adding to 222234520 its reverse (25432222), we get a palindrome (247666742).

The spelling of 222234520 in words is "two hundred twenty-two million, two hundred thirty-four thousand, five hundred twenty".