9120120020 has 48 divisors (see below), whose sum is σ = 21567361536. Its totient is φ = 3209424000.

The previous prime is 9120120007. The next prime is 9120120077. The reversal of 9120120020 is 200210219.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661811 + ... + 675450.

It is an arithmetic number, because the mean of its divisors is an integer number (449320032).

Almost surely, 2^9120120020 is an apocalyptic number.

It is an amenable number.

9120120020 is an abundant number, since it is smaller than the sum of its proper divisors (12447241516).

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

9120120020 is a wasteful number, since it uses less digits than its factorization.

9120120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337312 (or 1337310 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 9120120020 is about 95499.3194740151. The cubic root of 9120120020 is about 2089.2970186749.

Adding to 9120120020 its reverse (200210219), we get a palindrome (9320330239).

The spelling of 9120120020 in words is "nine billion, one hundred twenty million, one hundred twenty thousand, twenty".