120201223129 has 6 divisors (see below), whose sum is σ = 130158721086. Its totient is φ = 110954975040.

The previous prime is 120201223091. The next prime is 120201223147. The reversal of 120201223129 is 921322102021.

It can be written as a sum of positive squares in 3 ways, for example, as 8880235225 + 111320987904 = 94235^2 + 333648^2 .

It is not a de Polignac number, because 120201223129 - 2²⁵ = 120167668697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120201220129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355624752 + ... + 355625089.

It is an arithmetic number, because the mean of its divisors is an integer number (21693120181).

Almost surely, 2^120201223129 is an apocalyptic number.

It is an amenable number.

120201223129 is a deficient number, since it is larger than the sum of its proper divisors (9957497957).

120201223129 is an equidigital number, since it uses as much as digits as its factorization.

120201223129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711249867 (or 711249854 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 120201223129 in words is "one hundred twenty billion, two hundred one million, two hundred twenty-three thousand, one hundred twenty-nine".