120012120221121 has 24 divisors (see below), whose sum is σ = 189232886125920. Its totient is φ = 75797128557792.

The previous prime is 120012120221111. The next prime is 120012120221179. The reversal of 120012120221121 is 121122021210021.

120012120221121 is a `hidden beast` number, since 1 + 200 + 1 + 2 + 120 + 221 + 121 = 666.

It is not a de Polignac number, because 120012120221121 - 2³⁵ = 119977760482753 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120012120221094 and 120012120221103.

It is not an unprimeable number, because it can be changed into a prime (120012120221111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12996759540 + ... + 12996768773.

It is an arithmetic number, because the mean of its divisors is an integer number (7884703588580).

Almost surely, 2^{120012120221121} is an apocalyptic number.

It is an amenable number.

120012120221121 is a deficient number, since it is larger than the sum of its proper divisors (69220765904799).

120012120221121 is an equidigital number, since it uses as much as digits as its factorization.

120012120221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25993528347 (or 25993528335 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120012120221121 its reverse (121122021210021), we get a palindrome (241134141431142).

The spelling of 120012120221121 in words is "one hundred twenty trillion, twelve billion, one hundred twenty million, two hundred twenty-one thousand, one hundred twenty-one".