22012441 has 12 divisors (see below), whose sum is σ = 24432100. Its totient is φ = 19815840.

The previous prime is 22012429. The next prime is 22012451. The reversal of 22012441 is 14421022.

It can be written as a sum of positive squares in 2 ways, for example, as 13579225 + 8433216 = 3685^2 + 2904^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22012441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012411) 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 11 ways as a sum of consecutive naturals, for example, 12355 + ... + 14023.

Almost surely, 2^22012441 is an apocalyptic number.

It is an amenable number.

22012441 is a deficient number, since it is larger than the sum of its proper divisors (2419659).

22012441 is a wasteful number, since it uses less digits than its factorization.

22012441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800 (or 1789 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 22012441 is about 4691.7417874389. The cubic root of 22012441 is about 280.2567415538.

Adding to 22012441 its reverse (14421022), we get a palindrome (36433463).

The spelling of 22012441 in words is "twenty-two million, twelve thousand, four hundred forty-one".