2221234423553 has 2 divisors, whose sum is σ = 2221234423554. Its totient is φ = 2221234423552.

The previous prime is 2221234423547. The next prime is 2221234423589. The reversal of 2221234423553 is 3553244321222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1809541516864 + 411692906689 = 1345192^2 + 641633^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221234423553 - 2²⁴ = 2221217646337 is a prime.

It is a super-2 number, since 2×2221234423553² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2221234422553) 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, 1110617211776 + 1110617211777.

It is an arithmetic number, because the mean of its divisors is an integer number (1110617211777).

Almost surely, 2^{2221234423553} is an apocalyptic number.

It is an amenable number.

2221234423553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221234423553 is an equidigital number, since it uses as much as digits as its factorization.

2221234423553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 38.

Adding to 2221234423553 its reverse (3553244321222), we get a palindrome (5774478744775).

The spelling of 2221234423553 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-four million, four hundred twenty-three thousand, five hundred fifty-three".