210010200001020 has 72 divisors (see below), whose sum is σ = 637073929739520. Its totient is φ = 55998940682880.

The previous prime is 210010200001009. The next prime is 210010200001031. The reversal of 210010200001020 is 20100002010012.

It is an interprime number because it is at equal distance from previous prime (210010200001009) and next prime (210010200001031).

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

It is a junction number, because it is equal to n+sod(n) for n = 210010200000993 and 210010200001011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36692700 + ... + 42028259.

It is an arithmetic number, because the mean of its divisors is an integer number (8848249024160).

Almost surely, 2^{210010200001020} is an apocalyptic number.

210010200001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210010200001020 is an abundant number, since it is smaller than the sum of its proper divisors (427063729738500).

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

210010200001020 is a wasteful number, since it uses less digits than its factorization.

210010200001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78735795 (or 78735790 counting only the distinct ones).

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

Adding to 210010200001020 its reverse (20100002010012), we get a palindrome (230110202011032).

The spelling of 210010200001020 in words is "two hundred ten trillion, ten billion, two hundred million, one thousand, twenty".