212120002122020 has 24 divisors (see below), whose sum is σ = 448852401442368. Its totient is φ = 84200306184800.

The previous prime is 212120002121957. The next prime is 212120002122059. The reversal of 212120002122020 is 20221200021212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212120002122020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40480913816 + ... + 40480919055.

It is an arithmetic number, because the mean of its divisors is an integer number (18702183393432).

Almost surely, 2^{212120002122020} is an apocalyptic number.

212120002122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120002122020 is an abundant number, since it is smaller than the sum of its proper divisors (236732399320348).

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

212120002122020 is a wasteful number, since it uses less digits than its factorization.

212120002122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80961833011 (or 80961833009 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212120002122020 its reverse (20221200021212), we get a palindrome (232341202143232).

The spelling of 212120002122020 in words is "two hundred twelve trillion, one hundred twenty billion, two million, one hundred twenty-two thousand, twenty".