212222112020020 has 48 divisors (see below), whose sum is σ = 446503875225408. Its totient is φ = 84729370360320.

The previous prime is 212222112020003. The next prime is 212222112020081. The reversal of 212222112020020 is 20020211222212.

It is a self number, because there is not a number n which added to its sum of digits gives 212222112020020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88660044 + ... + 91022236.

It is an arithmetic number, because the mean of its divisors is an integer number (9302164067196).

Almost surely, 2^{212222112020020} is an apocalyptic number.

212222112020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212222112020020 is an abundant number, since it is smaller than the sum of its proper divisors (234281763205388).

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

212222112020020 is a wasteful number, since it uses less digits than its factorization.

212222112020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370640 (or 2370638 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212222112020020 its reverse (20020211222212), we get a palindrome (232242323242232).

The spelling of 212222112020020 in words is "two hundred twelve trillion, two hundred twenty-two billion, one hundred twelve million, twenty thousand, twenty".