10101121020000 has 180 divisors, whose sum is σ = 35894839240260. Its totient is φ = 2693632224000.

The previous prime is 10101121019989. The next prime is 10101121020031. The reversal of 10101121020000 is 2012110101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (180).

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

It is a congruent number.

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 29 ways as a sum of consecutive naturals, for example, 27878670 + ... + 28238669.

It is an arithmetic number, because the mean of its divisors is an integer number (199415773557).

Almost surely, 2^{10101121020000} is an apocalyptic number.

10101121020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101121020000 is an abundant number, since it is smaller than the sum of its proper divisors (25793718220260).

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

10101121020000 is an equidigital number, since it uses as much as digits as its factorization.

10101121020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56117375 (or 56117349 counting only the distinct ones).

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

Adding to 10101121020000 its reverse (2012110101), we get a palindrome (10103133130101).

The spelling of 10101121020000 in words is "ten trillion, one hundred one billion, one hundred twenty-one million, twenty thousand".