12212020212020 has 24 divisors (see below), whose sum is σ = 25679945104800. Its totient is φ = 4878198054432.

The previous prime is 12212020211971. The next prime is 12212020212079. The reversal of 12212020212020 is 2021202021221.

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 12212020212020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413111750 + ... + 413141309.

It is an arithmetic number, because the mean of its divisors is an integer number (1069997712700).

Almost surely, 2^{12212020212020} is an apocalyptic number.

12212020212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212020212020 is an abundant number, since it is smaller than the sum of its proper divisors (13467924892780).

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

12212020212020 is a wasteful number, since it uses less digits than its factorization.

12212020212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826253807 (or 826253805 counting only the distinct ones).

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

Adding to 12212020212020 its reverse (2021202021221), we get a palindrome (14233222233241).

The spelling of 12212020212020 in words is "twelve trillion, two hundred twelve billion, twenty million, two hundred twelve thousand, twenty".