22022211 has 8 divisors (see below), whose sum is σ = 29467840. Its totient is φ = 14629032.

The previous prime is 22022167. The next prime is 22022213. The reversal of 22022211 is 11222022.

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

It is not a de Polignac number, because 22022211 - 2¹³ = 22014019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22022213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12121 + ... + 13818.

It is an arithmetic number, because the mean of its divisors is an integer number (3683480).

Almost surely, 2^22022211 is an apocalyptic number.

22022211 is a deficient number, since it is larger than the sum of its proper divisors (7445629).

22022211 is a wasteful number, since it uses less digits than its factorization.

22022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26225.

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

The square root of 22022211 is about 4692.7828630782. The cubic root of 22022211 is about 280.2981984640.

Adding to 22022211 its reverse (11222022), we get a palindrome (33244233).

The spelling of 22022211 in words is "twenty-two million, twenty-two thousand, two hundred eleven".