22057771 has 8 divisors (see below), whose sum is σ = 22937600. Its totient is φ = 21188520.

The previous prime is 22057769. The next prime is 22057793. The reversal of 22057771 is 17775022.

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

It is a cyclic number.

It is not a de Polignac number, because 22057771 - 2¹ = 22057769 is a prime.

It is a super-2 number, since 2×22057771² = 973090522976882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1750 + ... + 6868.

It is an arithmetic number, because the mean of its divisors is an integer number (2867200).

Almost surely, 2^22057771 is an apocalyptic number.

22057771 is a deficient number, since it is larger than the sum of its proper divisors (879829).

22057771 is a wasteful number, since it uses less digits than its factorization.

22057771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289.

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 22057771 is about 4696.5701314896. The cubic root of 22057771 is about 280.4489862882.

The spelling of 22057771 in words is "twenty-two million, fifty-seven thousand, seven hundred seventy-one".