210021010900 has 36 divisors (see below), whose sum is σ = 475560624672. Its totient is φ = 80355864160.

The previous prime is 210021010883. The next prime is 210021010931. The reversal of 210021010900 is 9010120012.

210021010900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 45654442 + ... + 45659041.

It is an arithmetic number, because the mean of its divisors is an integer number (13210017352).

Almost surely, 2^210021010900 is an apocalyptic number.

210021010900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210021010900 is an abundant number, since it is smaller than the sum of its proper divisors (265539613772).

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

210021010900 is a wasteful number, since it uses less digits than its factorization.

210021010900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91313520 (or 91313513 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 210021010900 its reverse (9010120012), we get a palindrome (219031130912).

The spelling of 210021010900 in words is "two hundred ten billion, twenty-one million, ten thousand, nine hundred".