654222324121 has 2 divisors, whose sum is σ = 654222324122. Its totient is φ = 654222324120.

The previous prime is 654222324089. The next prime is 654222324137. The reversal of 654222324121 is 121423222456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356176208025 + 298046116096 = 596805^2 + 545936^2 .

It is a cyclic number.

It is not a de Polignac number, because 654222324121 - 2⁵ = 654222324089 is a prime.

It is not a weakly prime, because it can be changed into another prime (654222324421) 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, 327111162060 + 327111162061.

It is an arithmetic number, because the mean of its divisors is an integer number (327111162061).

Almost surely, 2^654222324121 is an apocalyptic number.

It is an amenable number.

654222324121 is a deficient number, since it is larger than the sum of its proper divisors (1).

654222324121 is an equidigital number, since it uses as much as digits as its factorization.

654222324121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 34.

Adding to 654222324121 its reverse (121423222456), we get a palindrome (775645546577).

The spelling of 654222324121 in words is "six hundred fifty-four billion, two hundred twenty-two million, three hundred twenty-four thousand, one hundred twenty-one".