22202211 has 4 divisors (see below), whose sum is σ = 29602952. Its totient is φ = 14801472.

The previous prime is 22202209. The next prime is 22202249. The reversal of 22202211 is 11220222.

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

It is not a de Polignac number, because 22202211 - 2¹ = 22202209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22202261) 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, 3700366 + ... + 3700371.

It is an arithmetic number, because the mean of its divisors is an integer number (7400738).

Almost surely, 2^22202211 is an apocalyptic number.

22202211 is a deficient number, since it is larger than the sum of its proper divisors (7400741).

22202211 is an equidigital number, since it uses as much as digits as its factorization.

22202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7400740.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 22202211 is about 4711.9222192222. The cubic root of 22202211 is about 281.0598058307.

Adding to 22202211 its reverse (11220222), we get a palindrome (33422433).

It can be divided in two parts, 2220221 and 1, that added together give a palindrome (2220222).

The spelling of 22202211 in words is "twenty-two million, two hundred two thousand, two hundred eleven".