11222110022021 has 4 divisors (see below), whose sum is σ = 11230283446572. Its totient is φ = 11213936597472.

The previous prime is 11222110021999. The next prime is 11222110022033. The reversal of 11222110022021 is 12022001122211.

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 8802560881921 + 2419549140100 = 2966911^2 + 1555490^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222110022021 - 2³⁰ = 11221036280197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222110022041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4086710216 + ... + 4086712961.

It is an arithmetic number, because the mean of its divisors is an integer number (2807570861643).

Almost surely, 2^{11222110022021} is an apocalyptic number.

It is an amenable number.

11222110022021 is a deficient number, since it is larger than the sum of its proper divisors (8173424551).

11222110022021 is an equidigital number, since it uses as much as digits as its factorization.

11222110022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8173424550.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11222110022021 its reverse (12022001122211), we get a palindrome (23244111144232).

The spelling of 11222110022021 in words is "eleven trillion, two hundred twenty-two billion, one hundred ten million, twenty-two thousand, twenty-one".