212102120002020 has 48 divisors (see below), whose sum is σ = 601041188260800. Its totient is φ = 55879112738176.

The previous prime is 212102120001923. The next prime is 212102120002039. The reversal of 212102120002020 is 20200021201212.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 21295388595 + ... + 21295398554.

It is an arithmetic number, because the mean of its divisors is an integer number (12521691422100).

Almost surely, 2^{212102120002020} is an apocalyptic number.

212102120002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102120002020 is an abundant number, since it is smaller than the sum of its proper divisors (388939068258780).

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

212102120002020 is a wasteful number, since it uses less digits than its factorization.

212102120002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42590787244 (or 42590787242 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212102120002020 its reverse (20200021201212), we get a palindrome (232302141203232).

The spelling of 212102120002020 in words is "two hundred twelve trillion, one hundred two billion, one hundred twenty million, two thousand, twenty".