20201122210201 has 4 divisors (see below), whose sum is σ = 20485645058304. Its totient is φ = 19916599362100.

The previous prime is 20201122210141. The next prime is 20201122210207. The reversal of 20201122210201 is 10201222110202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20201122210201 - 2¹⁷ = 20201122079129 is a prime.

It is a super-2 number, since 2×20201122210201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201122210207) 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, 142261423945 + ... + 142261424086.

It is an arithmetic number, because the mean of its divisors is an integer number (5121411264576).

Almost surely, 2^{20201122210201} is an apocalyptic number.

It is an amenable number.

20201122210201 is a deficient number, since it is larger than the sum of its proper divisors (284522848103).

20201122210201 is an equidigital number, since it uses as much as digits as its factorization.

20201122210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284522848102.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20201122210201 its reverse (10201222110202), we get a palindrome (30402344320403).

Subtracting from 20201122210201 its reverse (10201222110202), we obtain a palindrome (9999900099999).

The spelling of 20201122210201 in words is "twenty trillion, two hundred one billion, one hundred twenty-two million, two hundred ten thousand, two hundred one".