20224211 has 6 divisors (see below), whose sum is σ = 23526180. Its totient is φ = 17334996.

The previous prime is 20224207. The next prime is 20224229. The reversal of 20224211 is 11242202.

It is not a de Polignac number, because 20224211 - 2² = 20224207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20224261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206321 + ... + 206418.

It is an arithmetic number, because the mean of its divisors is an integer number (3921030).

Almost surely, 2^20224211 is an apocalyptic number.

20224211 is a deficient number, since it is larger than the sum of its proper divisors (3301969).

20224211 is an equidigital number, since it uses as much as digits as its factorization.

20224211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412753 (or 412746 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20224211 is about 4497.1336426662. The cubic root of 20224211 is about 272.4523318129.

Adding to 20224211 its reverse (11242202), we get a palindrome (31466413).

Subtracting from 20224211 its reverse (11242202), we obtain a square (8982009 = 2997²).

The spelling of 20224211 in words is "twenty million, two hundred twenty-four thousand, two hundred eleven".