210201212100020 has 12 divisors (see below), whose sum is σ = 441422545410084. Its totient is φ = 84080484840000.

The previous prime is 210201212100007. The next prime is 210201212100043. The reversal of 210201212100020 is 20001212102012.

210201212100020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43810922716324 + 166390289383696 = 6618982^2 + 12899236^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210201212099968 and 210201212100004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5255030302481 + ... + 5255030302520.

It is an arithmetic number, because the mean of its divisors is an integer number (36785212117507).

Almost surely, 2^{210201212100020} is an apocalyptic number.

210201212100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210201212100020 is an abundant number, since it is smaller than the sum of its proper divisors (231221333310064).

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

210201212100020 is a wasteful number, since it uses less digits than its factorization.

210201212100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510060605010 (or 10510060605008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210201212100020 its reverse (20001212102012), we get a palindrome (230202424202032).

The spelling of 210201212100020 in words is "two hundred ten trillion, two hundred one billion, two hundred twelve million, one hundred thousand, twenty".