222242011 has 4 divisors (see below), whose sum is σ = 222785800. Its totient is φ = 221698224.

The previous prime is 222241997. The next prime is 222242021. The reversal of 222242011 is 110242222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222242011 is a prime.

It is a super-2 number, since 2×222242011² = 98783022906648242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222242021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271281 + ... + 272098.

It is an arithmetic number, because the mean of its divisors is an integer number (55696450).

Almost surely, 2^222242011 is an apocalyptic number.

222242011 is a deficient number, since it is larger than the sum of its proper divisors (543789).

222242011 is an equidigital number, since it uses as much as digits as its factorization.

222242011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543788.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 222242011 is about 14907.7835710075. The cubic root of 222242011 is about 605.7248430415.

Adding to 222242011 its reverse (110242222), we get a palindrome (332484233).

The spelling of 222242011 in words is "two hundred twenty-two million, two hundred forty-two thousand, eleven".