212120121010000 has 200 divisors, whose sum is σ = 600579864974144. Its totient is φ = 71035574400000.

The previous prime is 212120121009971. The next prime is 212120121010013. The reversal of 212120121010000 is 10121021212.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32225901 + ... + 38245900.

Almost surely, 2^{212120121010000} is an apocalyptic number.

212120121010000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120121010000 is an abundant number, since it is smaller than the sum of its proper divisors (388459743964144).

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

212120121010000 is an equidigital number, since it uses as much as digits as its factorization.

212120121010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70471879 (or 70471858 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212120121010000 its reverse (10121021212), we get a palindrome (212130242031212).

The spelling of 212120121010000 in words is "two hundred twelve trillion, one hundred twenty billion, one hundred twenty-one million, ten thousand".