2202002202121 has 2 divisors, whose sum is σ = 2202002202122. Its totient is φ = 2202002202120.

The previous prime is 2202002202119. The next prime is 2202002202149. The reversal of 2202002202121 is 1212022002022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2198802602896 + 3199599225 = 1482836^2 + 56565^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202002202121 - 2¹ = 2202002202119 is a prime.

Together with 2202002202119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2202002202095 and 2202002202104.

It is not a weakly prime, because it can be changed into another prime (2202002202181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101001101060 + 1101001101061.

It is an arithmetic number, because the mean of its divisors is an integer number (1101001101061).

Almost surely, 2^{2202002202121} is an apocalyptic number.

It is an amenable number.

2202002202121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202002202121 is an equidigital number, since it uses as much as digits as its factorization.

2202002202121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2202002202121 its reverse (1212022002022), we get a palindrome (3414024204143).

The spelling of 2202002202121 in words is "two trillion, two hundred two billion, two million, two hundred two thousand, one hundred twenty-one".