212101120000000 has 1152 divisors, whose sum is σ = 663547770063360. Its totient is φ = 65863680000000.

The previous prime is 212101119999983. The next prime is 212101120000039. The reversal of 212101120000000 is 21101212.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 788479999866 + ... + 788480000134.

It is an arithmetic number, because the mean of its divisors is an integer number (575996328180).

Almost surely, 2^{212101120000000} is an apocalyptic number.

212101120000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212101120000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331773885031680).

212101120000000 is an abundant number, since it is smaller than the sum of its proper divisors (451446650063360).

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

212101120000000 is an frugal number, since it uses more digits than its factorization.

212101120000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 212101120000000 its reverse (21101212), we get a palindrome (212101141101212).

The spelling of 212101120000000 in words is "two hundred twelve trillion, one hundred one billion, one hundred twenty million", and thus it is an aban number.