43221031222417 has 2 divisors, whose sum is σ = 43221031222418. Its totient is φ = 43221031222416.

The previous prime is 43221031222409. The next prime is 43221031222477. The reversal of 43221031222417 is 71422213012234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26912687809536 + 16308343412881 = 5187744^2 + 4038359^2 .

It is a cyclic number.

It is not a de Polignac number, because 43221031222417 - 2³ = 43221031222409 is a prime.

It is not a weakly prime, because it can be changed into another prime (43221031222477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21610515611208 + 21610515611209.

It is an arithmetic number, because the mean of its divisors is an integer number (21610515611209).

Almost surely, 2^{43221031222417} is an apocalyptic number.

It is an amenable number.

43221031222417 is a deficient number, since it is larger than the sum of its proper divisors (1).

43221031222417 is an equidigital number, since it uses as much as digits as its factorization.

43221031222417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 43221031222417 in words is "forty-three trillion, two hundred twenty-one billion, thirty-one million, two hundred twenty-two thousand, four hundred seventeen".