22211473 has 4 divisors (see below), whose sum is σ = 22221108. Its totient is φ = 22201840.

The previous prime is 22211471. The next prime is 22211479. The reversal of 22211473 is 37411222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17918289 + 4293184 = 4233^2 + 2072^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211473 - 2¹ = 22211471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22211471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915 + ... + 6727.

It is an arithmetic number, because the mean of its divisors is an integer number (5555277).

Almost surely, 2^22211473 is an apocalyptic number.

It is an amenable number.

22211473 is a deficient number, since it is larger than the sum of its proper divisors (9635).

22211473 is an equidigital number, since it uses as much as digits as its factorization.

22211473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9634.

The product of its digits is 672, while the sum is 22.

The square root of 22211473 is about 4712.9049428139. The cubic root of 22211473 is about 281.0988832304.

Adding to 22211473 its reverse (37411222), we get a palindrome (59622695).

The spelling of 22211473 in words is "twenty-two million, two hundred eleven thousand, four hundred seventy-three".