2243001220505 has 16 divisors (see below), whose sum is σ = 2850354967824. Its totient is φ = 1688596715520.

The previous prime is 2243001220489. The next prime is 2243001220507. The reversal of 2243001220505 is 5050221003422.

2243001220505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 374902717849 + 1868098502656 = 612293^2 + 1366784^2 .

It is not a de Polignac number, because 2243001220505 - 2⁴ = 2243001220489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243001220507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1387316 + ... + 2531925.

It is an arithmetic number, because the mean of its divisors is an integer number (178147185489).

Almost surely, 2^{2243001220505} is an apocalyptic number.

It is an amenable number.

2243001220505 is a deficient number, since it is larger than the sum of its proper divisors (607353747319).

2243001220505 is a wasteful number, since it uses less digits than its factorization.

2243001220505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925996.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 2243001220505 its reverse (5050221003422), we get a palindrome (7293222223927).

The spelling of 2243001220505 in words is "two trillion, two hundred forty-three billion, one million, two hundred twenty thousand, five hundred five".