120111002221 has 16 divisors (see below), whose sum is σ = 138509234176. Its totient is φ = 102024510336.

The previous prime is 120111002191. The next prime is 120111002227. The reversal of 120111002221 is 122200111021.

It is a de Polignac number, because none of the positive numbers 2^k-120111002221 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 (120111002227) 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 15 ways as a sum of consecutive naturals, for example, 702625 + ... + 856681.

It is an arithmetic number, because the mean of its divisors is an integer number (8656827136).

Almost surely, 2^120111002221 is an apocalyptic number.

It is an amenable number.

120111002221 is a deficient number, since it is larger than the sum of its proper divisors (18398231955).

120111002221 is a wasteful number, since it uses less digits than its factorization.

120111002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155068.

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

Adding to 120111002221 its reverse (122200111021), we get a palindrome (242311113242).

The spelling of 120111002221 in words is "one hundred twenty billion, one hundred eleven million, two thousand, two hundred twenty-one".