22111220000221 has 8 divisors (see below), whose sum is σ = 25540232727744. Its totient is φ = 18918690909120.

The previous prime is 22111220000203. The next prime is 22111220000227. The reversal of 22111220000221 is 12200002211122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22111220000221 - 2¹⁵ = 22111219967453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22111220000195 and 22111220000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111220000227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59120908905 + ... + 59120909278.

It is an arithmetic number, because the mean of its divisors is an integer number (3192529090968).

Almost surely, 2^{22111220000221} is an apocalyptic number.

It is an amenable number.

22111220000221 is a deficient number, since it is larger than the sum of its proper divisors (3429012727523).

22111220000221 is a wasteful number, since it uses less digits than its factorization.

22111220000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118241818211.

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

Adding to 22111220000221 its reverse (12200002211122), we get a palindrome (34311222211343).

The spelling of 22111220000221 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, two hundred twenty-one", and thus it is an aban number.