22201221211 has 8 divisors (see below), whose sum is σ = 24141135200. Its totient is φ = 20294468352.

The previous prime is 22201221209. The next prime is 22201221227. The reversal of 22201221211 is 11212210222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22201221211 - 2¹ = 22201221209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22201221811) 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 7 ways as a sum of consecutive naturals, for example, 8288886 + ... + 8291563.

It is an arithmetic number, because the mean of its divisors is an integer number (3017641900).

Almost surely, 2^22201221211 is an apocalyptic number.

22201221211 is a deficient number, since it is larger than the sum of its proper divisors (1939913989).

22201221211 is a wasteful number, since it uses less digits than its factorization.

22201221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16580565.

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

Adding to 22201221211 its reverse (11212210222), we get a palindrome (33413431433).

The spelling of 22201221211 in words is "twenty-two billion, two hundred one million, two hundred twenty-one thousand, two hundred eleven".