100120221010000 has 400 divisors, whose sum is σ = 249757576992000. Its totient is φ = 38844748800000.

The previous prime is 100120221009997. The next prime is 100120221010093. The reversal of 100120221010000 is 10122021001.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 95443489476 + ... + 95443490524.

It is an arithmetic number, because the mean of its divisors is an integer number (624393942480).

Almost surely, 2^{100120221010000} is an apocalyptic number.

100120221010000 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 100120221010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124878788496000).

100120221010000 is an abundant number, since it is smaller than the sum of its proper divisors (149637355982000).

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

100120221010000 is a wasteful number, since it uses less digits than its factorization.

100120221010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100120221010000 its reverse (10122021001), we get a palindrome (100130343031001).

The spelling of 100120221010000 in words is "one hundred trillion, one hundred twenty billion, two hundred twenty-one million, ten thousand".