22057111 has 4 divisors (see below), whose sum is σ = 22098424. Its totient is φ = 22015800.

The previous prime is 22057103. The next prime is 22057163. The reversal of 22057111 is 11175022.

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

It is a cyclic number.

It is not a de Polignac number, because 22057111 - 2³ = 22057103 is a prime.

It is a super-2 number, since 2×22057111² = 973032291332642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22057171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19845 + ... + 20926.

It is an arithmetic number, because the mean of its divisors is an integer number (5524606).

Almost surely, 2^22057111 is an apocalyptic number.

22057111 is a deficient number, since it is larger than the sum of its proper divisors (41313).

22057111 is an equidigital number, since it uses as much as digits as its factorization.

22057111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41312.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 22057111 is about 4696.4998669222. The cubic root of 22057111 is about 280.4461891156.

It can be divided in two parts, 2205 and 7111, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 22057111 in words is "twenty-two million, fifty-seven thousand, one hundred eleven".