120011213101121 has 4 divisors (see below), whose sum is σ = 120816657484500. Its totient is φ = 119205768717744.

The previous prime is 120011213101111. The next prime is 120011213101123. The reversal of 120011213101121 is 121101312110021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76864234200625 + 43146978900496 = 8767225^2 + 6568636^2 .

It is a cyclic number.

It is not a de Polignac number, because 120011213101121 - 2³⁴ = 119994033231937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120011213101121.

It is not an unprimeable number, because it can be changed into a prime (120011213101123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402722191466 + ... + 402722191763.

It is an arithmetic number, because the mean of its divisors is an integer number (30204164371125).

Almost surely, 2^{120011213101121} is an apocalyptic number.

It is an amenable number.

120011213101121 is a deficient number, since it is larger than the sum of its proper divisors (805444383379).

120011213101121 is an equidigital number, since it uses as much as digits as its factorization.

120011213101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805444383378.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 120011213101121 its reverse (121101312110021), we get a palindrome (241112525211142).

The spelling of 120011213101121 in words is "one hundred twenty trillion, eleven billion, two hundred thirteen million, one hundred one thousand, one hundred twenty-one".