2222543320121 has 2 divisors, whose sum is σ = 2222543320122. Its totient is φ = 2222543320120.

The previous prime is 2222543320093. The next prime is 2222543320177. The reversal of 2222543320121 is 1210233452222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2057902142521 + 164641177600 = 1434539^2 + 405760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222543320121 - 2²² = 2222539125817 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222543320021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111271660060 + 1111271660061.

It is an arithmetic number, because the mean of its divisors is an integer number (1111271660061).

Almost surely, 2^{2222543320121} is an apocalyptic number.

It is an amenable number.

2222543320121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222543320121 is an equidigital number, since it uses as much as digits as its factorization.

2222543320121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 2222543320121 its reverse (1210233452222), we get a palindrome (3432776772343).

The spelling of 2222543320121 in words is "two trillion, two hundred twenty-two billion, five hundred forty-three million, three hundred twenty thousand, one hundred twenty-one".