11210120212221 has 96 divisors (see below), whose sum is σ = 20632962504960. Its totient is φ = 5709572333568.

The previous prime is 11210120212199. The next prime is 11210120212237. The reversal of 11210120212221 is 12221202101211.

11210120212221 is a `hidden beast` number, since 1 + 1 + 210 + 1 + 20 + 212 + 221 = 666.

It is not a de Polignac number, because 11210120212221 - 2⁵ = 11210120212189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11210120212194 and 11210120212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210120212321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56409985 + ... + 56608361.

It is an arithmetic number, because the mean of its divisors is an integer number (214926692760).

Almost surely, 2^{11210120212221} is an apocalyptic number.

It is an amenable number.

11210120212221 is a deficient number, since it is larger than the sum of its proper divisors (9422842292739).

11210120212221 is a wasteful number, since it uses less digits than its factorization.

11210120212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201203 (or 201200 counting only the distinct ones).

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

Adding to 11210120212221 its reverse (12221202101211), we get a palindrome (23431322313432).

The spelling of 11210120212221 in words is "eleven trillion, two hundred ten billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-one".