22214445 has 64 divisors (see below), whose sum is σ = 41361408. Its totient is φ = 10080000.

The previous prime is 22214443. The next prime is 22214449. The reversal of 22214445 is 54441222.

It is a happy number.

22214445 is a nontrivial binomial coefficient, being equal to C(6666, 2).

It is not a de Polignac number, because 22214445 - 2¹ = 22214443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 219895 + ... + 219995.

It is an arithmetic number, because the mean of its divisors is an integer number (646272).

Almost surely, 2^22214445 is an apocalyptic number.

22214445 is the 6665-th triangular number and also the 3333-rd hexagonal number.

It is an amenable number.

22214445 is a deficient number, since it is larger than the sum of its proper divisors (19146963).

22214445 is a wasteful number, since it uses less digits than its factorization.

22214445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194.

The product of its digits is 2560, while the sum is 24.

The square root of 22214445 is about 4713.2202367384. The cubic root of 22214445 is about 281.1114201240. Note that the first 3 decimals are identical.

Adding to 22214445 its reverse (54441222), we get a palindrome (76655667).

It can be divided in two parts, 2221 and 4445, that added together give a palindrome (6666).

The spelling of 22214445 in words is "twenty-two million, two hundred fourteen thousand, four hundred forty-five".