210120201000 has 384 divisors, whose sum is σ = 738840960000. Its totient is φ = 53801280000.

The previous prime is 210120200989. The next prime is 210120201013. The reversal of 210120201000 is 102021012.

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 (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36546126 + ... + 36551874.

It is an arithmetic number, because the mean of its divisors is an integer number (1924065000).

Almost surely, 2^210120201000 is an apocalyptic number.

210120201000 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 210120201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369420480000).

210120201000 is an abundant number, since it is smaller than the sum of its proper divisors (528720759000).

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

210120201000 is a wasteful number, since it uses less digits than its factorization.

210120201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938 (or 5921 counting only the distinct ones).

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

Adding to 210120201000 its reverse (102021012), we get a palindrome (210222222012).

The spelling of 210120201000 in words is "two hundred ten billion, one hundred twenty million, two hundred one thousand".