120001102020100 has 144 divisors (see below), whose sum is σ = 298076329893888. Its totient is φ = 41077776389760.

The previous prime is 120001102020067. The next prime is 120001102020131. The reversal of 120001102020100 is 1020201100021.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6761759427 + ... + 6761777173.

It is an arithmetic number, because the mean of its divisors is an integer number (2069974513152).

Almost surely, 2^{120001102020100} is an apocalyptic number.

120001102020100 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 120001102020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149038164946944).

120001102020100 is an abundant number, since it is smaller than the sum of its proper divisors (178075227873788).

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

120001102020100 is a wasteful number, since it uses less digits than its factorization.

120001102020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32594 (or 32587 counting only the distinct ones).

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

Adding to 120001102020100 its reverse (1020201100021), we get a palindrome (121021303120121).

The spelling of 120001102020100 in words is "one hundred twenty trillion, one billion, one hundred two million, twenty thousand, one hundred".