2202220002121 has 2 divisors, whose sum is σ = 2202220002122. Its totient is φ = 2202220002120.

The previous prime is 2202220002109. The next prime is 2202220002131. The reversal of 2202220002121 is 1212000222022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1554896772025 + 647323230096 = 1246955^2 + 804564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202220002121 - 2²⁵ = 2202186447689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2202220002095 and 2202220002104.

It is not a weakly prime, because it can be changed into another prime (2202220002131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101110001060 + 1101110001061.

It is an arithmetic number, because the mean of its divisors is an integer number (1101110001061).

Almost surely, 2^{2202220002121} is an apocalyptic number.

It is an amenable number.

2202220002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202220002121 is an equidigital number, since it uses as much as digits as its factorization.

2202220002121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 2202220002121 its reverse (1212000222022), we get a palindrome (3414220224143).

The spelling of 2202220002121 in words is "two trillion, two hundred two billion, two hundred twenty million, two thousand, one hundred twenty-one".