120011100212221 has 4 divisors (see below), whose sum is σ = 120017000193244. Its totient is φ = 120005200231200.

The previous prime is 120011100212197. The next prime is 120011100212261. The reversal of 120011100212221 is 122212001110021.

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 50808583584196 + 69202516628025 = 7128014^2 + 8318805^2 .

It is a cyclic number.

It is not a de Polignac number, because 120011100212221 - 2⁴¹ = 117812076956669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120011100212195 and 120011100212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011100212261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2949960000 + ... + 2950000681.

It is an arithmetic number, because the mean of its divisors is an integer number (30004250048311).

Almost surely, 2^{120011100212221} is an apocalyptic number.

It is an amenable number.

120011100212221 is a deficient number, since it is larger than the sum of its proper divisors (5899981023).

120011100212221 is an equidigital number, since it uses as much as digits as its factorization.

120011100212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5899981022.

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

Adding to 120011100212221 its reverse (122212001110021), we get a palindrome (242223101322242).

The spelling of 120011100212221 in words is "one hundred twenty trillion, eleven billion, one hundred million, two hundred twelve thousand, two hundred twenty-one".