11220012202221 has 48 divisors (see below), whose sum is σ = 17295416706048. Its totient is φ = 6996432672000.

The previous prime is 11220012202199. The next prime is 11220012202229. The reversal of 11220012202221 is 12220221002211.

It is a happy number.

11220012202221 is a `hidden beast` number, since 1 + 1 + 220 + 0 + 1 + 220 + 2 + 221 = 666.

It is not a de Polignac number, because 11220012202221 - 2³⁷ = 11082573248749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220012202194 and 11220012202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220012202229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2040216 + ... + 5157761.

It is an arithmetic number, because the mean of its divisors is an integer number (360321181376).

Almost surely, 2^{11220012202221} is an apocalyptic number.

It is an amenable number.

11220012202221 is a deficient number, since it is larger than the sum of its proper divisors (6075404503827).

11220012202221 is a wasteful number, since it uses less digits than its factorization.

11220012202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7198202 (or 7198199 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11220012202221 its reverse (12220221002211), we get a palindrome (23440233204432).

The spelling of 11220012202221 in words is "eleven trillion, two hundred twenty billion, twelve million, two hundred two thousand, two hundred twenty-one".