210012200020 has 96 divisors (see below), whose sum is σ = 513773922816. Its totient is φ = 70613337600.

The previous prime is 210012200003. The next prime is 210012200033. The reversal of 210012200020 is 20002210012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20704150 + ... + 20714290.

It is an arithmetic number, because the mean of its divisors is an integer number (5351811696).

Almost surely, 2^210012200020 is an apocalyptic number.

210012200020 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 210012200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256886961408).

210012200020 is an abundant number, since it is smaller than the sum of its proper divisors (303761722796).

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

210012200020 is a wasteful number, since it uses less digits than its factorization.

210012200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13001 (or 12999 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 210012200020 its reverse (20002210012), we get a palindrome (230014410032).

The spelling of 210012200020 in words is "two hundred ten billion, twelve million, two hundred thousand, twenty".