120720229 has 4 divisors (see below), whose sum is σ = 137965984. Its totient is φ = 103474476.

The previous prime is 120720227. The next prime is 120720239. The reversal of 120720229 is 922027021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 120720229 - 2¹ = 120720227 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120720227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8622867 + ... + 8622880.

It is an arithmetic number, because the mean of its divisors is an integer number (34491496).

Almost surely, 2^120720229 is an apocalyptic number.

It is an amenable number.

120720229 is a deficient number, since it is larger than the sum of its proper divisors (17245755).

120720229 is an equidigital number, since it uses as much as digits as its factorization.

120720229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17245754.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 120720229 is about 10987.2757770068. The cubic root of 120720229 is about 494.2272457845.

The spelling of 120720229 in words is "one hundred twenty million, seven hundred twenty thousand, two hundred twenty-nine".