22011143 has 24 divisors (see below), whose sum is σ = 28287504. Its totient is φ = 16934400.

The previous prime is 22011131. The next prime is 22011149. The reversal of 22011143 is 34111022.

It is not a de Polignac number, because 22011143 - 2¹⁴ = 21994759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52073 + ... + 52493.

It is an arithmetic number, because the mean of its divisors is an integer number (1178646).

Almost surely, 2^22011143 is an apocalyptic number.

22011143 is a deficient number, since it is larger than the sum of its proper divisors (6276361).

22011143 is a wasteful number, since it uses less digits than its factorization.

22011143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 22011143 is about 4691.6034572415. The cubic root of 22011143 is about 280.2512328447.

Adding to 22011143 its reverse (34111022), we get a palindrome (56122165).

The spelling of 22011143 in words is "twenty-two million, eleven thousand, one hundred forty-three".