2003221022112 has 72 divisors (see below), whose sum is σ = 5768769464640. Its totient is φ = 659287923840.

The previous prime is 2003221022111. The next prime is 2003221022119. The reversal of 2003221022112 is 2112201223002.

2003221022112 is a `hidden beast` number, since 200 + 32 + 210 + 221 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2003221022111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44000214 + ... + 44045717.

It is an arithmetic number, because the mean of its divisors is an integer number (80121798120).

Almost surely, 2^{2003221022112} is an apocalyptic number.

It is an amenable number.

2003221022112 is an abundant number, since it is smaller than the sum of its proper divisors (3765548442528).

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

2003221022112 is a wasteful number, since it uses less digits than its factorization.

2003221022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88046026 (or 88046015 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2003221022112 its reverse (2112201223002), we get a palindrome (4115422245114).

The spelling of 2003221022112 in words is "two trillion, three billion, two hundred twenty-one million, twenty-two thousand, one hundred twelve".