11100202002221 has 4 divisors (see below), whose sum is σ = 11210104992444. Its totient is φ = 10990299012000.

The previous prime is 11100202002181. The next prime is 11100202002251. The reversal of 11100202002221 is 12220020200111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7620525880900 + 3479676121321 = 2760530^2 + 1865389^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100202002221 - 2⁶ = 11100202002157 is a prime.

It is a super-2 number, since 2×11100202002221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100202002196 and 11100202002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100202002251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54951494960 + ... + 54951495161.

It is an arithmetic number, because the mean of its divisors is an integer number (2802526248111).

Almost surely, 2^{11100202002221} is an apocalyptic number.

It is an amenable number.

11100202002221 is a deficient number, since it is larger than the sum of its proper divisors (109902990223).

11100202002221 is a wasteful number, since it uses less digits than its factorization.

11100202002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109902990222.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11100202002221 its reverse (12220020200111), we get a palindrome (23320222202332).

The spelling of 11100202002221 in words is "eleven trillion, one hundred billion, two hundred two million, two thousand, two hundred twenty-one".