12202120122121 has 4 divisors (see below), whose sum is σ = 12202145064144. Its totient is φ = 12202095180100.

The previous prime is 12202120122109. The next prime is 12202120122131. The reversal of 12202120122121 is 12122102120221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12202120122121 - 2³⁷ = 12064681168649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12202120122131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11722195 + ... + 12720616.

It is an arithmetic number, because the mean of its divisors is an integer number (3050536266036).

Almost surely, 2^{12202120122121} is an apocalyptic number.

It is an amenable number.

12202120122121 is a deficient number, since it is larger than the sum of its proper divisors (24942023).

12202120122121 is an equidigital number, since it uses as much as digits as its factorization.

12202120122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24942022.

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

Adding to 12202120122121 its reverse (12122102120221), we get a palindrome (24324222242342).

The spelling of 12202120122121 in words is "twelve trillion, two hundred two billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty-one".