212102211201020 has 48 divisors (see below), whose sum is σ = 509237618050560. Its totient is φ = 72693285102144.

The previous prime is 212102211200981. The next prime is 212102211201037. The reversal of 212102211201020 is 20102112201212.

It is a super-3 number, since 3×212102211201020³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212102211201020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285805430 + ... + 286546589.

It is an arithmetic number, because the mean of its divisors is an integer number (10609117042720).

Almost surely, 2^{212102211201020} is an apocalyptic number.

212102211201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102211201020 is an abundant number, since it is smaller than the sum of its proper divisors (297135406849540).

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

212102211201020 is a wasteful number, since it uses less digits than its factorization.

212102211201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572354682 (or 572354680 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212102211201020 its reverse (20102112201212), we get a palindrome (232204323402232).

The spelling of 212102211201020 in words is "two hundred twelve trillion, one hundred two billion, two hundred eleven million, two hundred one thousand, twenty".