120121120002121 has 16 divisors (see below), whose sum is σ = 137726009344000. Its totient is φ = 102627921851280.

The previous prime is 120121120002119. The next prime is 120121120002209. The reversal of 120121120002121 is 121200021121021.

It is not a de Polignac number, because 120121120002121 - 2¹ = 120121120002119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120121120002095 and 120121120002104.

It is not an unprimeable number, because it can be changed into a prime (120121120002421) 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, 18368841 + ... + 24034486.

It is an arithmetic number, because the mean of its divisors is an integer number (8607875584000).

Almost surely, 2^{120121120002121} is an apocalyptic number.

It is an amenable number.

120121120002121 is a deficient number, since it is larger than the sum of its proper divisors (17604889341879).

120121120002121 is an equidigital number, since it uses as much as digits as its factorization.

120121120002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42404644.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120121120002121 its reverse (121200021121021), we get a palindrome (241321141123142).

The spelling of 120121120002121 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred twenty million, two thousand, one hundred twenty-one".