101201121000 has 384 divisors, whose sum is σ = 398915712000. Its totient is φ = 23130979200.

The previous prime is 101201120941. The next prime is 101201121013. The reversal of 101201121000 is 121102101.

It is a happy number.

101201121000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3070609 + ... + 3103391.

It is an arithmetic number, because the mean of its divisors is an integer number (1038843000).

Almost surely, 2^101201121000 is an apocalyptic number.

101201121000 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 101201121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199457856000).

101201121000 is an abundant number, since it is smaller than the sum of its proper divisors (297714591000).

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

101201121000 is a wasteful number, since it uses less digits than its factorization.

101201121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32831 (or 32800 counting only the distinct ones).

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

Adding to 101201121000 its reverse (121102101), we get a palindrome (101322223101).

The spelling of 101201121000 in words is "one hundred one billion, two hundred one million, one hundred twenty-one thousand".