11202221101221 has 40 divisors (see below), whose sum is σ = 17321613613920. Its totient is φ = 7206297047712.

The previous prime is 11202221101193. The next prime is 11202221101241. The reversal of 11202221101221 is 12210112220211.

11202221101221 is a `hidden beast` number, since 1 + 120 + 2 + 221 + 101 + 221 = 666.

It is not a de Polignac number, because 11202221101221 - 2⁵ = 11202221101189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11202221101194 and 11202221101203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202221101241) 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 39 ways as a sum of consecutive naturals, for example, 2485390 + ... + 5346176.

It is an arithmetic number, because the mean of its divisors is an integer number (433040340348).

Almost surely, 2^{11202221101221} is an apocalyptic number.

It is an amenable number.

11202221101221 is a deficient number, since it is larger than the sum of its proper divisors (6119392512699).

11202221101221 is a wasteful number, since it uses less digits than its factorization.

11202221101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862495 (or 2862486 counting only the distinct ones).

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

Adding to 11202221101221 its reverse (12210112220211), we get a palindrome (23412333321432).

The spelling of 11202221101221 in words is "eleven trillion, two hundred two billion, two hundred twenty-one million, one hundred one thousand, two hundred twenty-one".