22010013 has 6 divisors (see below), whose sum is σ = 31792254. Its totient is φ = 14673336.

The previous prime is 22010003. The next prime is 22010033. The reversal of 22010013 is 31001022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21930489 + 79524 = 4683^2 + 282^2 .

It is not a de Polignac number, because 22010013 - 2¹³ = 22001821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2445557 = 22010013 / (2 + 2 + 0 + 1 + 0 + 0 + 1 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 22009977 and 22010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222770 + ... + 1222787.

It is an arithmetic number, because the mean of its divisors is an integer number (5298709).

Almost surely, 2^22010013 is an apocalyptic number.

It is an amenable number.

22010013 is a deficient number, since it is larger than the sum of its proper divisors (9782241).

22010013 is a wasteful number, since it uses less digits than its factorization.

22010013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445563 (or 2445560 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 22010013 is about 4691.4830277856. The cubic root of 22010013 is about 280.2464369509.

Adding to 22010013 its reverse (31001022), we get a palindrome (53011035).

The spelling of 22010013 in words is "twenty-two million, ten thousand, thirteen".