11202220120221 has 48 divisors (see below), whose sum is σ = 17854114037760. Its totient is φ = 6724246314240.

The previous prime is 11202220120171. The next prime is 11202220120277. The reversal of 11202220120221 is 12202102220211.

It is a happy number.

11202220120221 is a `hidden beast` number, since 1 + 1 + 202 + 220 + 1 + 20 + 221 = 666.

It is not a de Polignac number, because 11202220120221 - 2¹⁰ = 11202220119197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11202220120194 and 11202220120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202220120621) 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, 25102180 + ... + 25544546.

It is an arithmetic number, because the mean of its divisors is an integer number (371960709120).

Almost surely, 2^{11202220120221} is an apocalyptic number.

It is an amenable number.

11202220120221 is a deficient number, since it is larger than the sum of its proper divisors (6651893917539).

11202220120221 is a wasteful number, since it uses less digits than its factorization.

11202220120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447706 (or 447703 counting only the distinct ones).

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

Adding to 11202220120221 its reverse (12202102220211), we get a palindrome (23404322340432).

The spelling of 11202220120221 in words is "eleven trillion, two hundred two billion, two hundred twenty million, one hundred twenty thousand, two hundred twenty-one".