102121120100000 has 288 divisors, whose sum is σ = 262532546841600. Its totient is φ = 39026394880000.

The previous prime is 102121120099993. The next prime is 102121120100081. The reversal of 102121120100000 is 1021121201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1984874276 + ... + 1984925724.

It is an arithmetic number, because the mean of its divisors is an integer number (911571343200).

Almost surely, 2^{102121120100000} is an apocalyptic number.

102121120100000 is a gapful number since it is divisible by the number (10) 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 102121120100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131266273420800).

102121120100000 is an abundant number, since it is smaller than the sum of its proper divisors (160411426741600).

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

102121120100000 is an frugal number, since it uses more digits than its factorization.

102121120100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52370 (or 52342 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102121120100000 its reverse (1021121201), we get a palindrome (102122141221201).

The spelling of 102121120100000 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty million, one hundred thousand".