2220541111555 has 32 divisors (see below), whose sum is σ = 2931141427200. Its totient is φ = 1604641487232.

The previous prime is 2220541111531. The next prime is 2220541111559. The reversal of 2220541111555 is 5551111450222.

It is a cyclic number.

It is not a de Polignac number, because 2220541111555 - 2⁹ = 2220541111043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2220541111555.

It is not an unprimeable number, because it can be changed into a prime (2220541111559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20472456 + ... + 20580634.

It is an arithmetic number, because the mean of its divisors is an integer number (91598169600).

Almost surely, 2^{2220541111555} is an apocalyptic number.

2220541111555 is a deficient number, since it is larger than the sum of its proper divisors (710600315645).

2220541111555 is a wasteful number, since it uses less digits than its factorization.

2220541111555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114963.

The product of its (nonzero) digits is 20000, while the sum is 34.

Adding to 2220541111555 its reverse (5551111450222), we get a palindrome (7771652561777).

The spelling of 2220541111555 in words is "two trillion, two hundred twenty billion, five hundred forty-one million, one hundred eleven thousand, five hundred fifty-five".