100120000102100 has 288 divisors, whose sum is σ = 252054449982720. Its totient is φ = 34157533696000.

The previous prime is 100120000102099. The next prime is 100120000102103. The reversal of 100120000102100 is 1201000021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120000102103) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5928110456 + ... + 5928127344.

It is an arithmetic number, because the mean of its divisors is an integer number (875189062440).

Almost surely, 2^{100120000102100} is an apocalyptic number.

100120000102100 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 100120000102100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126027224991360).

100120000102100 is an abundant number, since it is smaller than the sum of its proper divisors (151934449880620).

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

100120000102100 is a wasteful number, since it uses less digits than its factorization.

100120000102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21411 (or 21404 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100120000102100 its reverse (1201000021001), we get a palindrome (101321000123101).

The spelling of 100120000102100 in words is "one hundred trillion, one hundred twenty billion, one hundred two thousand, one hundred".