212012220000020 has 24 divisors (see below), whose sum is σ = 485700722182368. Its totient is φ = 77095352727200.

The previous prime is 212012220000011. The next prime is 212012220000103. The reversal of 212012220000020 is 20000022210212.

It is a congruent number.

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, 481845954326 + ... + 481845954765.

It is an arithmetic number, because the mean of its divisors is an integer number (20237530090932).

Almost surely, 2^{212012220000020} is an apocalyptic number.

212012220000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212012220000020 is an abundant number, since it is smaller than the sum of its proper divisors (273688502182348).

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

212012220000020 is a wasteful number, since it uses less digits than its factorization.

212012220000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963691909111 (or 963691909109 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 212012220000020 its reverse (20000022210212), we get a palindrome (232012242210232).

The spelling of 212012220000020 in words is "two hundred twelve trillion, twelve billion, two hundred twenty million, twenty", and thus it is an aban number.