2220144311444 has 12 divisors (see below), whose sum is σ = 3894225417684. Its totient is φ = 1107508477824.

The previous prime is 2220144311311. The next prime is 2220144311447. The reversal of 2220144311444 is 4441134410222.

It can be written as a sum of positive squares in 2 ways, for example, as 956116307344 + 1264028004100 = 977812^2 + 1124290^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2220144311444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220144311447) 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, 640917527 + ... + 640920990.

It is an arithmetic number, because the mean of its divisors is an integer number (324518784807).

Almost surely, 2^{2220144311444} is an apocalyptic number.

It is an amenable number.

2220144311444 is a deficient number, since it is larger than the sum of its proper divisors (1674081106240).

2220144311444 is a wasteful number, since it uses less digits than its factorization.

2220144311444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281838954 (or 1281838952 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 2220144311444 its reverse (4441134410222), we get a palindrome (6661278721666).

The spelling of 2220144311444 in words is "two trillion, two hundred twenty billion, one hundred forty-four million, three hundred eleven thousand, four hundred forty-four".