222421244 has 6 divisors (see below), whose sum is σ = 389237184. Its totient is φ = 111210620.

The previous prime is 222421237. The next prime is 222421289. The reversal of 222421244 is 442124222.

222421244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27802652 + ... + 27802659.

It is an arithmetic number, because the mean of its divisors is an integer number (64872864).

Almost surely, 2^222421244 is an apocalyptic number.

It is an amenable number.

222421244 is a deficient number, since it is larger than the sum of its proper divisors (166815940).

222421244 is a wasteful number, since it uses less digits than its factorization.

222421244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55605315 (or 55605313 counting only the distinct ones).

The product of its digits is 2048, while the sum is 23.

The square root of 222421244 is about 14913.7937494120. The cubic root of 222421244 is about 605.8876336080.

Adding to 222421244 its reverse (442124222), we get a palindrome (664545466).

The spelling of 222421244 in words is "two hundred twenty-two million, four hundred twenty-one thousand, two hundred forty-four".