4243221200429 has 2 divisors, whose sum is σ = 4243221200430. Its totient is φ = 4243221200428.

The previous prime is 4243221200399. The next prime is 4243221200447. The reversal of 4243221200429 is 9240021223424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2451344468329 + 1791876732100 = 1565677^2 + 1338610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243221200429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243221200459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121610600214 + 2121610600215.

It is an arithmetic number, because the mean of its divisors is an integer number (2121610600215).

Almost surely, 2^{4243221200429} is an apocalyptic number.

It is an amenable number.

4243221200429 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243221200429 is an equidigital number, since it uses as much as digits as its factorization.

4243221200429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 4243221200429 in words is "four trillion, two hundred forty-three billion, two hundred twenty-one million, two hundred thousand, four hundred twenty-nine".