120100201020 has 72 divisors (see below), whose sum is σ = 365003467920. Its totient is φ = 31965223680.

The previous prime is 120100200977. The next prime is 120100201043. The reversal of 120100201020 is 20102001021.

120100201020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 120100200993 and 120100201011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 546550 + ... + 734109.

It is an arithmetic number, because the mean of its divisors is an integer number (5069492610).

Almost surely, 2^120100201020 is an apocalyptic number.

120100201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120100201020 is an abundant number, since it is smaller than the sum of its proper divisors (244903266900).

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

120100201020 is a wasteful number, since it uses less digits than its factorization.

120100201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281195 (or 1281190 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 120100201020 its reverse (20102001021), we get a palindrome (140202202041).

The spelling of 120100201020 in words is "one hundred twenty billion, one hundred million, two hundred one thousand, twenty".