2102001100 has 18 divisors (see below), whose sum is σ = 4561342604. Its totient is φ = 840800400.

The previous prime is 2102001067. The next prime is 2102001137. The reversal of 2102001100 is 11002012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10509906 + ... + 10510105.

Almost surely, 2^2102001100 is an apocalyptic number.

2102001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102001100 is an abundant number, since it is smaller than the sum of its proper divisors (2459341504).

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

2102001100 is a wasteful number, since it uses less digits than its factorization.

2102001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21020025 (or 21020018 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2102001100 is about 45847.5855416618. The cubic root of 2102001100 is about 1280.9857925172.

Adding to 2102001100 its reverse (11002012), we get a palindrome (2113003112).

The spelling of 2102001100 in words is "two billion, one hundred two million, one thousand, one hundred".