11220102220021 has 4 divisors (see below), whose sum is σ = 11582041001344. Its totient is φ = 10858163438700.

The previous prime is 11220102220001. The next prime is 11220102220049. The reversal of 11220102220021 is 12002220102211.

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 11220102220021 - 2¹⁵ = 11220102187253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220102219977 and 11220102220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220102220001) 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, 180969390615 + ... + 180969390676.

It is an arithmetic number, because the mean of its divisors is an integer number (2895510250336).

Almost surely, 2^{11220102220021} is an apocalyptic number.

It is an amenable number.

11220102220021 is a deficient number, since it is larger than the sum of its proper divisors (361938781323).

11220102220021 is an equidigital number, since it uses as much as digits as its factorization.

11220102220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361938781322.

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

Adding to 11220102220021 its reverse (12002220102211), we get a palindrome (23222322322232).

The spelling of 11220102220021 in words is "eleven trillion, two hundred twenty billion, one hundred two million, two hundred twenty thousand, twenty-one".