22202221211 has 4 divisors (see below), whose sum is σ = 22514928624. Its totient is φ = 21889513800.

The previous prime is 22202221201. The next prime is 22202221229. The reversal of 22202221211 is 11212220222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22202221211 - 2¹⁸ = 22201959067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22202221211.

It is not an unprimeable number, because it can be changed into a prime (22202221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156353600 + ... + 156353741.

It is an arithmetic number, because the mean of its divisors is an integer number (5628732156).

Almost surely, 2^22202221211 is an apocalyptic number.

22202221211 is a deficient number, since it is larger than the sum of its proper divisors (312707413).

22202221211 is an equidigital number, since it uses as much as digits as its factorization.

22202221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312707412.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22202221211 its reverse (11212220222), we get a palindrome (33414441433).

The spelling of 22202221211 in words is "twenty-two billion, two hundred two million, two hundred twenty-one thousand, two hundred eleven".