2001223442344 has 32 divisors (see below), whose sum is σ = 4288381344000. Its totient is φ = 857658110400.

The previous prime is 2001223442321. The next prime is 2001223442353. The reversal of 2001223442344 is 4432443221002.

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 7 ways as a sum of consecutive naturals, for example, 10133457 + ... + 10329055.

It is an arithmetic number, because the mean of its divisors is an integer number (134011917000).

Almost surely, 2^{2001223442344} is an apocalyptic number.

It is an amenable number.

2001223442344 is an abundant number, since it is smaller than the sum of its proper divisors (2287157901656).

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

2001223442344 is a wasteful number, since it uses less digits than its factorization.

2001223442344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378313 (or 378309 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 2001223442344 its reverse (4432443221002), we get a palindrome (6433666663346).

The spelling of 2001223442344 in words is "two trillion, one billion, two hundred twenty-three million, four hundred forty-two thousand, three hundred forty-four".