120011202012121 has 12 divisors (see below), whose sum is σ = 139862917340580. Its totient is φ = 102676602702240.

The previous prime is 120011202012109. The next prime is 120011202012157. The reversal of 120011202012121 is 121210202110021.

It can be written as a sum of positive squares in 2 ways, for example, as 69266736056896 + 50744465955225 = 8322664^2 + 7123515^2 .

It is not a de Polignac number, because 120011202012121 - 2²⁷ = 120011067794393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120011202012095 and 120011202012104.

It is not an unprimeable number, because it can be changed into a prime (120011202010121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2263567026 + ... + 2263620043.

It is an arithmetic number, because the mean of its divisors is an integer number (11655243111715).

Almost surely, 2^{120011202012121} is an apocalyptic number.

It is an amenable number.

120011202012121 is a deficient number, since it is larger than the sum of its proper divisors (19851715328459).

120011202012121 is an equidigital number, since it uses as much as digits as its factorization.

120011202012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527187624 (or 4527187617 counting only the distinct ones).

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

Adding to 120011202012121 its reverse (121210202110021), we get a palindrome (241221404122142).

The spelling of 120011202012121 in words is "one hundred twenty trillion, eleven billion, two hundred two million, twelve thousand, one hundred twenty-one".