11222200020221 has 4 divisors (see below), whose sum is σ = 11230695252444. Its totient is φ = 11213704788000.

The previous prime is 11222200020211. The next prime is 11222200020233. The reversal of 11222200020221 is 12202000222211.

It is a happy number.

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 6669357900100 + 4552842120121 = 2582510^2 + 2133739^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222200020221 - 2³⁴ = 11205020151037 is a prime.

It is a super-3 number, since 3×11222200020221³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11222200020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222200020211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4247614130 + ... + 4247616771.

It is an arithmetic number, because the mean of its divisors is an integer number (2807673813111).

Almost surely, 2^{11222200020221} is an apocalyptic number.

It is an amenable number.

11222200020221 is a deficient number, since it is larger than the sum of its proper divisors (8495232223).

11222200020221 is an equidigital number, since it uses as much as digits as its factorization.

11222200020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8495232222.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11222200020221 its reverse (12202000222211), we get a palindrome (23424200242432).

The spelling of 11222200020221 in words is "eleven trillion, two hundred twenty-two billion, two hundred million, twenty thousand, two hundred twenty-one".