2002100121100 has 36 divisors (see below), whose sum is σ = 4346089269984. Its totient is φ = 800557650880.

The previous prime is 2002100121041. The next prime is 2002100121113. The reversal of 2002100121100 is 11210012002.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3244852 + ... + 3812251.

It is an arithmetic number, because the mean of its divisors is an integer number (120724701944).

Almost surely, 2^{2002100121100} is an apocalyptic number.

2002100121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002100121100 is an abundant number, since it is smaller than the sum of its proper divisors (2343989148884).

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

2002100121100 is a wasteful number, since it uses less digits than its factorization.

2002100121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7059954 (or 7059947 counting only the distinct ones).

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

Adding to 2002100121100 its reverse (11210012002), we get a palindrome (2013310133102).

The spelling of 2002100121100 in words is "two trillion, two billion, one hundred million, one hundred twenty-one thousand, one hundred".