2002001121100 has 18 divisors (see below), whose sum is σ = 4344342433004. Its totient is φ = 800800448400.

The previous prime is 2002001121047. The next prime is 2002001121149. The reversal of 2002001121100 is 11211002002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10010005506 + ... + 10010005705.

Almost surely, 2^{2002001121100} is an apocalyptic number.

2002001121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002001121100 is an abundant number, since it is smaller than the sum of its proper divisors (2342341311904).

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

2002001121100 is a wasteful number, since it uses less digits than its factorization.

2002001121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020011225 (or 20020011218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2002001121100 its reverse (11211002002), we get a palindrome (2013212123102).

The spelling of 2002001121100 in words is "two trillion, two billion, one million, one hundred twenty-one thousand, one hundred".