11022100220221 has 4 divisors (see below), whose sum is σ = 11256612990912. Its totient is φ = 10787587449532.

The previous prime is 11022100220213. The next prime is 11022100220333. The reversal of 11022100220221 is 12202200122011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11022100220221 - 2³ = 11022100220213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022100220195 and 11022100220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022100220921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117256385275 + ... + 117256385368.

It is an arithmetic number, because the mean of its divisors is an integer number (2814153247728).

Almost surely, 2^{11022100220221} is an apocalyptic number.

It is an amenable number.

11022100220221 is a deficient number, since it is larger than the sum of its proper divisors (234512770691).

11022100220221 is an equidigital number, since it uses as much as digits as its factorization.

11022100220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234512770690.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11022100220221 its reverse (12202200122011), we get a palindrome (23224300342232).

The spelling of 11022100220221 in words is "eleven trillion, twenty-two billion, one hundred million, two hundred twenty thousand, two hundred twenty-one".