22201222021201 has 12 divisors (see below), whose sum is σ = 22687351261492. Its totient is φ = 21725299397088.

The previous prime is 22201222021183. The next prime is 22201222021291. The reversal of 22201222021201 is 10212022210222.

It can be written as a sum of positive squares in 2 ways, for example, as 20555841161025 + 1645380860176 = 4533855^2 + 1282724^2 .

It is not a de Polignac number, because 22201222021201 - 2⁹ = 22201222020689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201222021291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12728431 + ... + 14367163.

Almost surely, 2^{22201222021201} is an apocalyptic number.

It is an amenable number.

22201222021201 is a deficient number, since it is larger than the sum of its proper divisors (486129240291).

22201222021201 is an equidigital number, since it uses as much as digits as its factorization.

22201222021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644960 (or 1644913 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22201222021201 its reverse (10212022210222), we get a palindrome (32413244231423).

The spelling of 22201222021201 in words is "twenty-two trillion, two hundred one billion, two hundred twenty-two million, twenty-one thousand, two hundred one".