2002112001944 has 16 divisors (see below), whose sum is σ = 3974781180600. Its totient is φ = 942170353792.

The previous prime is 2002112001943. The next prime is 2002112002049. The reversal of 2002112001944 is 4491002112002.

It is a super-2 number, since 2×2002112001944² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002112001941) 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, 7360705754 + ... + 7360706025.

Almost surely, 2^{2002112001944} is an apocalyptic number.

It is an amenable number.

2002112001944 is a deficient number, since it is larger than the sum of its proper divisors (1972669178656).

2002112001944 is a wasteful number, since it uses less digits than its factorization.

2002112001944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14721411802 (or 14721411798 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 2002112001944 its reverse (4491002112002), we get a palindrome (6493114113946).

The spelling of 2002112001944 in words is "two trillion, two billion, one hundred twelve million, one thousand, nine hundred forty-four".