43012221017 has 2 divisors, whose sum is σ = 43012221018. Its totient is φ = 43012221016.

The previous prime is 43012220981. The next prime is 43012221053. The reversal of 43012221017 is 71012221034.

It is a balanced prime because it is at equal distance from previous prime (43012220981) and next prime (43012221053).

It can be written as a sum of positive squares in only one way, i.e., 38718826441 + 4293394576 = 196771^2 + 65524^2 .

It is a cyclic number.

It is not a de Polignac number, because 43012221017 - 2¹⁴ = 43012204633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43012220983 and 43012221001.

It is not a weakly prime, because it can be changed into another prime (43012221617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21506110508 + 21506110509.

It is an arithmetic number, because the mean of its divisors is an integer number (21506110509).

Almost surely, 2^43012221017 is an apocalyptic number.

It is an amenable number.

43012221017 is a deficient number, since it is larger than the sum of its proper divisors (1).

43012221017 is an equidigital number, since it uses as much as digits as its factorization.

43012221017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The spelling of 43012221017 in words is "forty-three billion, twelve million, two hundred twenty-one thousand, seventeen".