11220122221021 has 8 divisors (see below), whose sum is σ = 12826278912320. Its totient is φ = 9614786051808.

The previous prime is 11220122220997. The next prime is 11220122221031. The reversal of 11220122221021 is 12012222102211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11220122221021 - 2⁷ = 11220122220893 is a prime.

It is a super-2 number, since 2×11220122221021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11220122221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220122221031) 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 7 ways as a sum of consecutive naturals, for example, 205101216 + ... + 205155913.

It is an arithmetic number, because the mean of its divisors is an integer number (1603284864040).

Almost surely, 2^{11220122221021} is an apocalyptic number.

It is an amenable number.

11220122221021 is a deficient number, since it is larger than the sum of its proper divisors (1606156691299).

11220122221021 is an equidigital number, since it uses as much as digits as its factorization.

11220122221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410261043.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11220122221021 its reverse (12012222102211), we get a palindrome (23232344323232).

The spelling of 11220122221021 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, twenty-one".