11222100201221 has 16 divisors (see below), whose sum is σ = 14133020651904. Its totient is φ = 8672535393984.

The previous prime is 11222100201211. The next prime is 11222100201251. The reversal of 11222100201221 is 12210200122211.

11222100201221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11222100201221 - 2¹⁰ = 11222100200197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11222100201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222100201211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433947046 + ... + 1433954871.

It is an arithmetic number, because the mean of its divisors is an integer number (883313790744).

Almost surely, 2^{11222100201221} is an apocalyptic number.

It is an amenable number.

11222100201221 is a deficient number, since it is larger than the sum of its proper divisors (2910920450683).

11222100201221 is a wasteful number, since it uses less digits than its factorization.

11222100201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867901980.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11222100201221 its reverse (12210200122211), we get a palindrome (23432300323432).

The spelling of 11222100201221 in words is "eleven trillion, two hundred twenty-two billion, one hundred million, two hundred one thousand, two hundred twenty-one".