12120122212201 has 4 divisors (see below), whose sum is σ = 12141127623892. Its totient is φ = 12099116800512.

The previous prime is 12120122212129. The next prime is 12120122212283. The reversal of 12120122212201 is 10221222102121.

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 11908186278976 + 211935933225 = 3450824^2 + 460365^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120122212201 - 2¹⁵ = 12120122179433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120122210201) 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, 10502704980 + ... + 10502706133.

It is an arithmetic number, because the mean of its divisors is an integer number (3035281905973).

Almost surely, 2^{12120122212201} is an apocalyptic number.

It is an amenable number.

12120122212201 is a deficient number, since it is larger than the sum of its proper divisors (21005411691).

12120122212201 is an equidigital number, since it uses as much as digits as its factorization.

12120122212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21005411690.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12120122212201 its reverse (10221222102121), we get a palindrome (22341344314322).

The spelling of 12120122212201 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, two hundred one".