2221100000221 has 16 divisors (see below), whose sum is σ = 2322418210560. Its totient is φ = 2124194294640.

The previous prime is 2221100000219. The next prime is 2221100000263. The reversal of 2221100000221 is 1220000011222.

It is a happy number.

It is not a de Polignac number, because 2221100000221 - 2¹ = 2221100000219 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 (2221100000921) 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 15 ways as a sum of consecutive naturals, for example, 113642176 + ... + 113661718.

It is an arithmetic number, because the mean of its divisors is an integer number (145151138160).

Almost surely, 2^{2221100000221} is an apocalyptic number.

It is an amenable number.

2221100000221 is a deficient number, since it is larger than the sum of its proper divisors (101318210339).

2221100000221 is an frugal number, since it uses more digits than its factorization.

2221100000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28953 (or 28907 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2221100000221 its reverse (1220000011222), we get a palindrome (3441100011443).

The spelling of 2221100000221 in words is "two trillion, two hundred twenty-one billion, one hundred million, two hundred twenty-one", and thus it is an aban number.