11102200220021 has 4 divisors (see below), whose sum is σ = 11102207033292. Its totient is φ = 11102193406752.

The previous prime is 11102200220003. The next prime is 11102200220029. The reversal of 11102200220021 is 12002200220111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3805772803921 + 7296427416100 = 1950839^2 + 2701190^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102200220021 - 2²² = 11102196025717 is a prime.

It is a super-3 number, since 3×11102200220021³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11102200219978 and 11102200220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102200220029) 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, 639521 + ... + 4755353.

It is an arithmetic number, because the mean of its divisors is an integer number (2775551758323).

Almost surely, 2^{11102200220021} is an apocalyptic number.

It is an amenable number.

11102200220021 is a deficient number, since it is larger than the sum of its proper divisors (6813271).

11102200220021 is an equidigital number, since it uses as much as digits as its factorization.

11102200220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6813270.

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

Adding to 11102200220021 its reverse (12002200220111), we get a palindrome (23104400440132).

The spelling of 11102200220021 in words is "eleven trillion, one hundred two billion, two hundred million, two hundred twenty thousand, twenty-one".