212201021201020 has 24 divisors (see below), whose sum is σ = 445632230836800. Its totient is φ = 84878487277632.

The previous prime is 212201021200967. The next prime is 212201021201023. The reversal of 212201021201020 is 20102120102212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212201021200985 and 212201021201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201021201023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119169300 + ... + 120936859.

It is an arithmetic number, because the mean of its divisors is an integer number (18568009618200).

Almost surely, 2^{212201021201020} is an apocalyptic number.

212201021201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201021201020 is an abundant number, since it is smaller than the sum of its proper divisors (233431209635780).

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

212201021201020 is a wasteful number, since it uses less digits than its factorization.

212201021201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240150357 (or 240150355 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212201021201020 its reverse (20102120102212), we get a palindrome (232303141303232).

The spelling of 212201021201020 in words is "two hundred twelve trillion, two hundred one billion, twenty-one million, two hundred one thousand, twenty".