210021102000 has 480 divisors, whose sum is σ = 761359644864. Its totient is φ = 53913600000.

The previous prime is 210021101977. The next prime is 210021102079. The reversal of 210021102000 is 201120012.

210021102000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 95 ways as a sum of consecutive naturals, for example, 64600375 + ... + 64603625.

Almost surely, 2^210021102000 is an apocalyptic number.

210021102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210021102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380679822432).

210021102000 is an abundant number, since it is smaller than the sum of its proper divisors (551338542864).

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

210021102000 is a wasteful number, since it uses less digits than its factorization.

210021102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414 (or 3395 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210021102000 its reverse (201120012), we get a palindrome (210222222012).

The spelling of 210021102000 in words is "two hundred ten billion, twenty-one million, one hundred two thousand".