22201013 has 4 divisors (see below), whose sum is σ = 22225548. Its totient is φ = 22176480.

The previous prime is 22201001. The next prime is 22201019. The reversal of 22201013 is 31010222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7006609 + 15194404 = 2647^2 + 3898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22201013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200985 and 22201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10856 + ... + 12737.

It is an arithmetic number, because the mean of its divisors is an integer number (5556387).

Almost surely, 2^22201013 is an apocalyptic number.

It is an amenable number.

22201013 is a deficient number, since it is larger than the sum of its proper divisors (24535).

22201013 is an equidigital number, since it uses as much as digits as its factorization.

22201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24534.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 22201013 is about 4711.7950931678. The cubic root of 22201013 is about 281.0547505428.

Adding to 22201013 its reverse (31010222), we get a palindrome (53211235).

The spelling of 22201013 in words is "twenty-two million, two hundred one thousand, thirteen".