11212013110221 has 112 divisors (see below), whose sum is σ = 20961451450368. Its totient is φ = 5823555847200.

The previous prime is 11212013110187. The next prime is 11212013110229. The reversal of 11212013110221 is 12201131021211.

It is a happy number.

11212013110221 is a `hidden beast` number, since 1 + 12 + 120 + 1 + 311 + 0 + 221 = 666.

It is not a de Polignac number, because 11212013110221 - 2¹⁰ = 11212013109197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11212013110194 and 11212013110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212013110229) 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 111 ways as a sum of consecutive naturals, for example, 576532320 + ... + 576551766.

Almost surely, 2^{11212013110221} is an apocalyptic number.

11212013110221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11212013110221 is a deficient number, since it is larger than the sum of its proper divisors (9749438340147).

11212013110221 is a wasteful number, since it uses less digits than its factorization.

11212013110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29754 (or 29739 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11212013110221 its reverse (12201131021211), we get a palindrome (23413144131432).

The spelling of 11212013110221 in words is "eleven trillion, two hundred twelve billion, thirteen million, one hundred ten thousand, two hundred twenty-one".