120201155 has 4 divisors (see below), whose sum is σ = 144241392. Its totient is φ = 96160920.

The previous prime is 120201127. The next prime is 120201173. The reversal of 120201155 is 551102021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120201155 - 2⁶ = 120201091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12020111 + ... + 12020120.

It is an arithmetic number, because the mean of its divisors is an integer number (36060348).

Almost surely, 2^120201155 is an apocalyptic number.

120201155 is a deficient number, since it is larger than the sum of its proper divisors (24040237).

120201155 is an equidigital number, since it uses as much as digits as its factorization.

120201155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24040236.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 120201155 is about 10963.6287332251. The cubic root of 120201155 is about 493.5178670605.

Adding to 120201155 its reverse (551102021), we get a palindrome (671303176).

The spelling of 120201155 in words is "one hundred twenty million, two hundred one thousand, one hundred fifty-five".