222321011 has 4 divisors (see below), whose sum is σ = 242532024. Its totient is φ = 202110000.

The previous prime is 222321007. The next prime is 222321023. The reversal of 222321011 is 110123222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 222321011 - 2² = 222321007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222321041) by changing a digit.

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, 10105490 + ... + 10105511.

It is an arithmetic number, because the mean of its divisors is an integer number (60633006).

Almost surely, 2^222321011 is an apocalyptic number.

222321011 is a deficient number, since it is larger than the sum of its proper divisors (20211013).

222321011 is a wasteful number, since it uses less digits than its factorization.

222321011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20211012.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 222321011 is about 14910.4329581672. The cubic root of 222321011 is about 605.7966065416.

Adding to 222321011 its reverse (110123222), we get a palindrome (332444233).

The spelling of 222321011 in words is "two hundred twenty-two million, three hundred twenty-one thousand, eleven".