2221000044505 has 16 divisors (see below), whose sum is σ = 2919074614848. Its totient is φ = 1608837400000.

The previous prime is 2221000044493. The next prime is 2221000044569. The reversal of 2221000044505 is 5054400001222.

It is not a de Polignac number, because 2221000044505 - 2⁷ = 2221000044377 is a prime.

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 2221000044505.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 80428066 + ... + 80455675.

It is an arithmetic number, because the mean of its divisors is an integer number (182442163428).

Almost surely, 2^{2221000044505} is an apocalyptic number.

It is an amenable number.

2221000044505 is a deficient number, since it is larger than the sum of its proper divisors (698074570343).

2221000044505 is a wasteful number, since it uses less digits than its factorization.

2221000044505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160884008.

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 2221000044505 its reverse (5054400001222), we get a palindrome (7275400045727).

The spelling of 2221000044505 in words is "two trillion, two hundred twenty-one billion, forty-four thousand, five hundred five".