22020201121 has 4 divisors (see below), whose sum is σ = 22020511744. Its totient is φ = 22019890500.

The previous prime is 22020201109. The next prime is 22020201179. The reversal of 22020201121 is 12110202022.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22020201121 - 2¹⁵ = 22020168353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22020291121) 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, 8896 + ... + 210046.

It is an arithmetic number, because the mean of its divisors is an integer number (5505127936).

Almost surely, 2^22020201121 is an apocalyptic number.

It is an amenable number.

22020201121 is a deficient number, since it is larger than the sum of its proper divisors (310623).

22020201121 is a wasteful number, since it uses less digits than its factorization.

22020201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310622.

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

Adding to 22020201121 its reverse (12110202022), we get a palindrome (34130403143).

Subtracting from 22020201121 its reverse (12110202022), we obtain a palindrome (9909999099).

The spelling of 22020201121 in words is "twenty-two billion, twenty million, two hundred one thousand, one hundred twenty-one".