22201221101 has 4 divisors (see below), whose sum is σ = 22246809312. Its totient is φ = 22155632892.

The previous prime is 22201221089. The next prime is 22201221131. The reversal of 22201221101 is 10112210222.

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 22201221101 - 2³⁰ = 21127479277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201221131) 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, 22793375 + ... + 22794348.

It is an arithmetic number, because the mean of its divisors is an integer number (5561702328).

Almost surely, 2^22201221101 is an apocalyptic number.

It is an amenable number.

22201221101 is a deficient number, since it is larger than the sum of its proper divisors (45588211).

22201221101 is an equidigital number, since it uses as much as digits as its factorization.

22201221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45588210.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22201221101 its reverse (10112210222), we get a palindrome (32313431323).

The spelling of 22201221101 in words is "twenty-two billion, two hundred one million, two hundred twenty-one thousand, one hundred one".