11210202220221 has 64 divisors (see below), whose sum is σ = 18192271680000. Its totient is φ = 6790830068736.

The previous prime is 11210202220193. The next prime is 11210202220223. The reversal of 11210202220221 is 12202220201211.

It is a happy number.

11210202220221 is a `hidden beast` number, since 1 + 1 + 21 + 0 + 202 + 220 + 221 = 666.

It is not a de Polignac number, because 11210202220221 - 2⁶ = 11210202220157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11210202220194 and 11210202220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210202220223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 322494840 + ... + 322529598.

It is an arithmetic number, because the mean of its divisors is an integer number (284254245000).

Almost surely, 2^{11210202220221} is an apocalyptic number.

It is an amenable number.

11210202220221 is a deficient number, since it is larger than the sum of its proper divisors (6982069459779).

11210202220221 is a wasteful number, since it uses less digits than its factorization.

11210202220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59043 (or 59037 counting only the distinct ones).

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

Adding to 11210202220221 its reverse (12202220201211), we get a palindrome (23412422421432).

The spelling of 11210202220221 in words is "eleven trillion, two hundred ten billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".