22002202220213 has 4 divisors (see below), whose sum is σ = 22002211624140. Its totient is φ = 22002192816288.

The previous prime is 22002202220179. The next prime is 22002202220233. The reversal of 22002202220213 is 31202220220022.

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 1766086839364 + 20236115380849 = 1328942^2 + 4498457^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002202220213 - 2¹⁰ = 22002202219189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002202220233) 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, 1862033 + ... + 6889961.

It is an arithmetic number, because the mean of its divisors is an integer number (5500552906035).

Almost surely, 2^{22002202220213} is an apocalyptic number.

It is an amenable number.

22002202220213 is a deficient number, since it is larger than the sum of its proper divisors (9403927).

22002202220213 is an equidigital number, since it uses as much as digits as its factorization.

22002202220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9403926.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22002202220213 its reverse (31202220220022), we get a palindrome (53204422440235).

The spelling of 22002202220213 in words is "twenty-two trillion, two billion, two hundred two million, two hundred twenty thousand, two hundred thirteen".