2202022221121 has 2 divisors, whose sum is σ = 2202022221122. Its totient is φ = 2202022221120.

The previous prime is 2202022221107. The next prime is 2202022221127. The reversal of 2202022221121 is 1211222202022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1895509400625 + 306512820496 = 1376775^2 + 553636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2202022221121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2202022221127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101011110560 + 1101011110561.

It is an arithmetic number, because the mean of its divisors is an integer number (1101011110561).

Almost surely, 2^{2202022221121} is an apocalyptic number.

It is an amenable number.

2202022221121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202022221121 is an equidigital number, since it uses as much as digits as its factorization.

2202022221121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2202022221121 its reverse (1211222202022), we get a palindrome (3413244423143).

The spelling of 2202022221121 in words is "two trillion, two hundred two billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".