2202120115121 has 2 divisors, whose sum is σ = 2202120115122. Its totient is φ = 2202120115120.

The previous prime is 2202120115081. The next prime is 2202120115187. The reversal of 2202120115121 is 1215110212022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1847666585521 + 354453529600 = 1359289^2 + 595360^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202120115121 - 2¹⁰ = 2202120114097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2202120115093 and 2202120115102.

It is not a weakly prime, because it can be changed into another prime (2202120175121) 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 as a sum of consecutive naturals, namely, 1101060057560 + 1101060057561.

It is an arithmetic number, because the mean of its divisors is an integer number (1101060057561).

Almost surely, 2^{2202120115121} is an apocalyptic number.

It is an amenable number.

2202120115121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202120115121 is an equidigital number, since it uses as much as digits as its factorization.

2202120115121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 2202120115121 its reverse (1215110212022), we get a palindrome (3417230327143).

The spelling of 2202120115121 in words is "two trillion, two hundred two billion, one hundred twenty million, one hundred fifteen thousand, one hundred twenty-one".