223221442 has 8 divisors (see below), whose sum is σ = 335016000. Its totient is φ = 111549444.

The previous prime is 223221437. The next prime is 223221451. The reversal of 223221442 is 244122322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×223221442³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25942 + ... + 33457.

It is an arithmetic number, because the mean of its divisors is an integer number (41877000).

Almost surely, 2^223221442 is an apocalyptic number.

223221442 is a deficient number, since it is larger than the sum of its proper divisors (111794558).

223221442 is a wasteful number, since it uses less digits than its factorization.

223221442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61280.

The product of its digits is 1536, while the sum is 22.

The square root of 223221442 is about 14940.5971098882. The cubic root of 223221442 is about 606.6133583692.

Adding to 223221442 its reverse (244122322), we get a palindrome (467343764).

The spelling of 223221442 in words is "two hundred twenty-three million, two hundred twenty-one thousand, four hundred forty-two".