120002221111 has 20 divisors (see below), whose sum is σ = 127978010632. Its totient is φ = 112522006656.

The previous prime is 120002221099. The next prime is 120002221151. The reversal of 120002221111 is 111122200021.

It is not a de Polignac number, because 120002221111 - 2⁷ = 120002220983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120002221091 and 120002221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002221151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23633905 + ... + 23638981.

Almost surely, 2^120002221111 is an apocalyptic number.

120002221111 is a deficient number, since it is larger than the sum of its proper divisors (7975789521).

120002221111 is an frugal number, since it uses more digits than its factorization.

120002221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428 (or 5377 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120002221111 its reverse (111122200021), we get a palindrome (231124421132).

The spelling of 120002221111 in words is "one hundred twenty billion, two million, two hundred twenty-one thousand, one hundred eleven".