2221410141221 has 2 divisors, whose sum is σ = 2221410141222. Its totient is φ = 2221410141220.

The previous prime is 2221410141163. The next prime is 2221410141233. The reversal of 2221410141221 is 1221410141222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2196365496196 + 25044645025 = 1482014^2 + 158255^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221410141221 - 2¹⁸ = 2221409879077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221410141241) 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, 1110705070610 + 1110705070611.

It is an arithmetic number, because the mean of its divisors is an integer number (1110705070611).

Almost surely, 2^{2221410141221} is an apocalyptic number.

It is an amenable number.

2221410141221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221410141221 is an equidigital number, since it uses as much as digits as its factorization.

2221410141221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 2221410141221 its reverse (1221410141222), we get a palindrome (3442820282443).

Subtracting from 2221410141221 its reverse (1221410141222), we obtain a palindrome (999999999999).

The spelling of 2221410141221 in words is "two trillion, two hundred twenty-one billion, four hundred ten million, one hundred forty-one thousand, two hundred twenty-one".