212101020001020 has 96 divisors (see below), whose sum is σ = 603442413987840. Its totient is φ = 55656709113600.

The previous prime is 212101020000997. The next prime is 212101020001033. The reversal of 212101020001020 is 20100020101212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 212101020000987 and 212101020001005.

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, 106374700 + ... + 108350259.

It is an arithmetic number, because the mean of its divisors is an integer number (6285858479040).

Almost surely, 2^{212101020001020} is an apocalyptic number.

212101020001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212101020001020 is an abundant number, since it is smaller than the sum of its proper divisors (391341393986820).

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

212101020001020 is a wasteful number, since it uses less digits than its factorization.

212101020001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214725235 (or 214725233 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212101020001020 its reverse (20100020101212), we get a palindrome (232201040102232).

The spelling of 212101020001020 in words is "two hundred twelve trillion, one hundred one billion, twenty million, one thousand, twenty".