4243222321601 has 2 divisors, whose sum is σ = 4243222321602. Its totient is φ = 4243222321600.

The previous prime is 4243222321589. The next prime is 4243222321607. The reversal of 4243222321601 is 1061232223424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3528142372225 + 715079949376 = 1878335^2 + 845624^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243222321601 - 2⁶ = 4243222321537 is a prime.

It is not a weakly prime, because it can be changed into another prime (4243222321607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121611160800 + 2121611160801.

It is an arithmetic number, because the mean of its divisors is an integer number (2121611160801).

Almost surely, 2^{4243222321601} is an apocalyptic number.

It is an amenable number.

4243222321601 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243222321601 is an equidigital number, since it uses as much as digits as its factorization.

4243222321601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 4243222321601 in words is "four trillion, two hundred forty-three billion, two hundred twenty-two million, three hundred twenty-one thousand, six hundred one".