120002111121 has 16 divisors (see below), whose sum is σ = 169886678400. Its totient is φ = 75085694208.

The previous prime is 120002111113. The next prime is 120002111123. The reversal of 120002111121 is 121111200021.

It is not a de Polignac number, because 120002111121 - 2³ = 120002111113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120002111097 and 120002111106.

It is not an unprimeable number, because it can be changed into a prime (120002111123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3258826 + ... + 3295443.

It is an arithmetic number, because the mean of its divisors is an integer number (10617917400).

Almost surely, 2^120002111121 is an apocalyptic number.

It is an amenable number.

120002111121 is a deficient number, since it is larger than the sum of its proper divisors (49884567279).

120002111121 is a wasteful number, since it uses less digits than its factorization.

120002111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6554648.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120002111121 its reverse (121111200021), we get a palindrome (241113311142).

The spelling of 120002111121 in words is "one hundred twenty billion, two million, one hundred eleven thousand, one hundred twenty-one".