120001020100 has 36 divisors (see below), whose sum is σ = 280433156164. Its totient is φ = 44308068480.

The previous prime is 120001020091. The next prime is 120001020103. The reversal of 120001020100 is 1020100021.

It can be written as a sum of positive squares in 6 ways, for example, as 47902325956 + 72098694144 = 218866^2 + 268512^2 .

It is not an unprimeable number, because it can be changed into a prime (120001020103) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 46152939 + ... + 46155538.

Almost surely, 2^120001020100 is an apocalyptic number.

120001020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120001020100 is an abundant number, since it is smaller than the sum of its proper divisors (160432136064).

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

120001020100 is a wasteful number, since it uses less digits than its factorization.

120001020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92308504 (or 92308497 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 120001020100 its reverse (1020100021), we get a palindrome (121021120121).

The spelling of 120001020100 in words is "one hundred twenty billion, one million, twenty thousand, one hundred".