120120100 has 18 divisors (see below), whose sum is σ = 260660834. Its totient is φ = 48048000.

The previous prime is 120120097. The next prime is 120120127. The reversal of 120120100 is 1021021.

It can be written as a sum of positive squares in 3 ways, for example, as 8479744 + 111640356 = 2912^2 + 10566^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 600501 + ... + 600700.

Almost surely, 2^120120100 is an apocalyptic number.

120120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120120100 is an abundant number, since it is smaller than the sum of its proper divisors (140540734).

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

120120100 is a wasteful number, since it uses less digits than its factorization.

120120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201215 (or 1201208 counting only the distinct ones).

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

The square root of 120120100 is about 10959.9315691294. The cubic root of 120120100 is about 493.4069111506.

Adding to 120120100 its reverse (1021021), we get a palindrome (121141121).

The spelling of 120120100 in words is "one hundred twenty million, one hundred twenty thousand, one hundred".