2221101222443 has 4 divisors (see below), whose sum is σ = 2272754739288. Its totient is φ = 2169447705600.

The previous prime is 2221101222437. The next prime is 2221101222463. The reversal of 2221101222443 is 3442221011222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2221101222443 - 2¹⁰ = 2221101221419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221101222433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25826758358 + ... + 25826758443.

It is an arithmetic number, because the mean of its divisors is an integer number (568188684822).

Almost surely, 2^{2221101222443} is an apocalyptic number.

2221101222443 is a deficient number, since it is larger than the sum of its proper divisors (51653516845).

2221101222443 is an equidigital number, since it uses as much as digits as its factorization.

2221101222443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51653516844.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 2221101222443 its reverse (3442221011222), we get a palindrome (5663322233665).

The spelling of 2221101222443 in words is "two trillion, two hundred twenty-one billion, one hundred one million, two hundred twenty-two thousand, four hundred forty-three".