10121110020000 has 1440 divisors, whose sum is σ = 43239187031040. Its totient is φ = 2196080640000.

The previous prime is 10121110019983. The next prime is 10121110020067. The reversal of 10121110020000 is 2001112101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

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 239 ways as a sum of consecutive naturals, for example, 2070177556 + ... + 2070182444.

It is an arithmetic number, because the mean of its divisors is an integer number (30027213216).

Almost surely, 2^{10121110020000} is an apocalyptic number.

10121110020000 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 10121110020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21619593515520).

10121110020000 is an abundant number, since it is smaller than the sum of its proper divisors (33118077011040).

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

10121110020000 is a wasteful number, since it uses less digits than its factorization.

10121110020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016 (or 4990 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10121110020000 its reverse (2001112101), we get a palindrome (10123111132101).

The spelling of 10121110020000 in words is "ten trillion, one hundred twenty-one billion, one hundred ten million, twenty thousand".