22142211 has 48 divisors (see below), whose sum is σ = 38790144. Its totient is φ = 10962432.

The previous prime is 22142189. The next prime is 22142213. The reversal of 22142211 is 11224122.

It is not a de Polignac number, because 22142211 - 2⁶ = 22142147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60150 + ... + 60516.

It is an arithmetic number, because the mean of its divisors is an integer number (808128).

Almost surely, 2^22142211 is an apocalyptic number.

22142211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22142211 is a deficient number, since it is larger than the sum of its proper divisors (16647933).

22142211 is a wasteful number, since it uses less digits than its factorization.

22142211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 407 counting only the distinct ones).

The product of its digits is 64, while the sum is 15.

The square root of 22142211 is about 4705.5510835608. The cubic root of 22142211 is about 280.8063956019.

Adding to 22142211 its reverse (11224122), we get a palindrome (33366333).

The spelling of 22142211 in words is "twenty-two million, one hundred forty-two thousand, two hundred eleven".