202220112001 has 4 divisors (see below), whose sum is σ = 202241184004. Its totient is φ = 202199040000.

The previous prime is 202220111941. The next prime is 202220112007. The reversal of 202220112001 is 100211022202.

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 165609116401 + 36610995600 = 406951^2 + 191340^2 .

It is a cyclic number.

It is not a de Polignac number, because 202220112001 - 2¹¹ = 202220109953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202220112007) 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 3 ways as a sum of consecutive naturals, for example, 10521600 + ... + 10540801.

It is an arithmetic number, because the mean of its divisors is an integer number (50560296001).

Almost surely, 2^202220112001 is an apocalyptic number.

It is an amenable number.

202220112001 is a deficient number, since it is larger than the sum of its proper divisors (21072003).

202220112001 is an equidigital number, since it uses as much as digits as its factorization.

202220112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21072002.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202220112001 its reverse (100211022202), we get a palindrome (302431134203).

The spelling of 202220112001 in words is "two hundred two billion, two hundred twenty million, one hundred twelve thousand, one".