212212023120 has 100 divisors (see below), whose sum is σ = 737043817620. Its totient is φ = 56589871104.

The previous prime is 212212023091. The next prime is 212212023137. The reversal of 212212023120 is 21320212212.

212212023120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26395851024 + 185816172096 = 162468^2 + 431064^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212212023093 and 212212023102.

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 19 ways as a sum of consecutive naturals, for example, 16367905 + ... + 16380864.

Almost surely, 2^212212023120 is an apocalyptic number.

212212023120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212212023120 is an abundant number, since it is smaller than the sum of its proper divisors (524831794500).

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

212212023120 is a wasteful number, since it uses less digits than its factorization.

212212023120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32748794 (or 32748779 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212212023120 its reverse (21320212212), we get a palindrome (233532235332).

The spelling of 212212023120 in words is "two hundred twelve billion, two hundred twelve million, twenty-three thousand, one hundred twenty".