220122201020213 has 4 divisors (see below), whose sum is σ = 220160068254828. Its totient is φ = 220084333785600.

The previous prime is 220122201020179. The next prime is 220122201020219. The reversal of 220122201020213 is 312020102221022.

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 72737307932689 + 147384893087524 = 8528617^2 + 12140218^2 .

It is a cyclic number.

It is not a de Polignac number, because 220122201020213 - 2²⁰ = 220122199971637 is a prime.

It is a super-2 number, since 2×220122201020213² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122201020219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18933608588 + ... + 18933620213.

It is an arithmetic number, because the mean of its divisors is an integer number (55040017063707).

Almost surely, 2^{220122201020213} is an apocalyptic number.

It is an amenable number.

220122201020213 is a deficient number, since it is larger than the sum of its proper divisors (37867234615).

220122201020213 is an equidigital number, since it uses as much as digits as its factorization.

220122201020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37867234614.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 220122201020213 its reverse (312020102221022), we get a palindrome (532142303241235).

The spelling of 220122201020213 in words is "two hundred twenty trillion, one hundred twenty-two billion, two hundred one million, twenty thousand, two hundred thirteen".