2002200123 has 24 divisors (see below), whose sum is σ = 3387769920. Its totient is φ = 1040103120.

The previous prime is 2002200121. The next prime is 2002200139. The reversal of 2002200123 is 3210022002.

It is not a de Polignac number, because 2002200123 - 2¹ = 2002200121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002200099 and 2002200108.

It is not an unprimeable number, because it can be changed into a prime (2002200121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 617493 + ... + 620726.

It is an arithmetic number, because the mean of its divisors is an integer number (141157080).

Almost surely, 2^2002200123 is an apocalyptic number.

2002200123 is a deficient number, since it is larger than the sum of its proper divisors (1385569797).

2002200123 is a wasteful number, since it uses less digits than its factorization.

2002200123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238247 (or 1238240 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2002200123 is about 44745.9509117864. The cubic root of 2002200123 is about 1260.3828774700.

Adding to 2002200123 its reverse (3210022002), we get a palindrome (5212222125).

The spelling of 2002200123 in words is "two billion, two million, two hundred thousand, one hundred twenty-three".