11211202221201 has 12 divisors (see below), whose sum is σ = 16199040060112. Its totient is φ = 7471789600536.

The previous prime is 11211202221179. The next prime is 11211202221209. The reversal of 11211202221201 is 10212220211211.

11211202221201 is a `hidden beast` number, since 1 + 121 + 120 + 2 + 221 + 201 = 666.

11211202221201 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 11211202221201 - 2¹⁰ = 11211202220177 is a prime.

It is a super-2 number, since 2×11211202221201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211202221209) 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, 195404191 + ... + 195461556.

Almost surely, 2^{11211202221201} is an apocalyptic number.

It is an amenable number.

11211202221201 is a deficient number, since it is larger than the sum of its proper divisors (4987837838911).

11211202221201 is a wasteful number, since it uses less digits than its factorization.

11211202221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390868940 (or 390868937 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11211202221201 its reverse (10212220211211), we get a palindrome (21423422432412).

The spelling of 11211202221201 in words is "eleven trillion, two hundred eleven billion, two hundred two million, two hundred twenty-one thousand, two hundred one".