2220204344442 has 128 divisors (see below), whose sum is σ = 5431703961600. Its totient is φ = 591333523200.

The previous prime is 2220204344437. The next prime is 2220204344443. The reversal of 2220204344442 is 2444434020222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2220204344443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16205484 + ... + 16341912.

It is an arithmetic number, because the mean of its divisors is an integer number (42435187200).

Almost surely, 2^{2220204344442} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2220204344442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2715851980800).

2220204344442 is an abundant number, since it is smaller than the sum of its proper divisors (3211499617158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220204344442 is a wasteful number, since it uses less digits than its factorization.

2220204344442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136932.

The product of its (nonzero) digits is 98304, while the sum is 33.

Adding to 2220204344442 its reverse (2444434020222), we get a palindrome (4664638364664).

The spelling of 2220204344442 in words is "two trillion, two hundred twenty billion, two hundred four million, three hundred forty-four thousand, four hundred forty-two".