100101011021000 has 128 divisors (see below), whose sum is σ = 255550997520000. Its totient is φ = 36397459296000.

The previous prime is 100101011020993. The next prime is 100101011021009. The reversal of 100101011021000 is 120110101001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (100101011021009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139771826 + ... + 140486174.

It is an arithmetic number, because the mean of its divisors is an integer number (1996492168125).

Almost surely, 2^{100101011021000} is an apocalyptic number.

100101011021000 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 100101011021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127775498760000).

100101011021000 is an abundant number, since it is smaller than the sum of its proper divisors (155449986499000).

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

100101011021000 is a wasteful number, since it uses less digits than its factorization.

100101011021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727120 (or 727106 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 100101011021000 its reverse (120110101001), we get a palindrome (100221121122001).

The spelling of 100101011021000 in words is "one hundred trillion, one hundred one billion, eleven million, twenty-one thousand".