12120722207121 has 64 divisors (see below), whose sum is σ = 17828854686720. Its totient is φ = 7263584736000.

The previous prime is 12120722207089. The next prime is 12120722207137. The reversal of 12120722207121 is 12170222702121.

It is not a de Polignac number, because 12120722207121 - 2⁵ = 12120722207089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120722207221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1190518651 + ... + 1190528831.

It is an arithmetic number, because the mean of its divisors is an integer number (278575854480).

Almost surely, 2^{12120722207121} is an apocalyptic number.

12120722207121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12120722207121 is a deficient number, since it is larger than the sum of its proper divisors (5708132479599).

12120722207121 is a wasteful number, since it uses less digits than its factorization.

12120722207121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11358.

The product of its (nonzero) digits is 3136, while the sum is 30.

Adding to 12120722207121 its reverse (12170222702121), we get a palindrome (24290944909242).

The spelling of 12120722207121 in words is "twelve trillion, one hundred twenty billion, seven hundred twenty-two million, two hundred seven thousand, one hundred twenty-one".