120012210020009 has 4 divisors (see below), whose sum is σ = 125230132194816. Its totient is φ = 114794287845204.

The previous prime is 120012210019997. The next prime is 120012210020047. The reversal of 120012210020009 is 900020012210021.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 120012210020009 - 2⁸ = 120012210019753 is a prime.

It is a super-3 number, since 3×120012210020009³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120012210020609) 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 3 ways as a sum of consecutive naturals, for example, 2608961087369 + ... + 2608961087414.

It is an arithmetic number, because the mean of its divisors is an integer number (31307533048704).

Almost surely, 2^{120012210020009} is an apocalyptic number.

It is an amenable number.

120012210020009 is a deficient number, since it is larger than the sum of its proper divisors (5217922174807).

120012210020009 is an equidigital number, since it uses as much as digits as its factorization.

120012210020009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217922174806.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 120012210020009 in words is "one hundred twenty trillion, twelve billion, two hundred ten million, twenty thousand, nine".