2010021100 has 72 divisors (see below), whose sum is σ = 4410373968. Its totient is φ = 795110400.

The previous prime is 2010021049. The next prime is 2010021103. The reversal of 2010021100 is 11200102.

It is not an unprimeable number, because it can be changed into a prime (2010021103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6547147 + ... + 6547453.

It is an arithmetic number, because the mean of its divisors is an integer number (61255194).

Almost surely, 2^2010021100 is an apocalyptic number.

2010021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2010021100 is an abundant number, since it is smaller than the sum of its proper divisors (2400352868).

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

2010021100 is a wasteful number, since it uses less digits than its factorization.

2010021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 828 counting only the distinct ones).

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

The square root of 2010021100 is about 44833.2588599134. The cubic root of 2010021100 is about 1262.0218442191.

Adding to 2010021100 its reverse (11200102), we get a palindrome (2021221202).

The spelling of 2010021100 in words is "two billion, ten million, twenty-one thousand, one hundred".