1022220999673 has 2 divisors, whose sum is σ = 1022220999674. Its totient is φ = 1022220999672.

The previous prime is 1022220999649. The next prime is 1022220999691. The reversal of 1022220999673 is 3769990222201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704923122409 + 317297877264 = 839597^2 + 563292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022220999673 is a prime.

It is a super-2 number, since 2×1022220999673² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022220999673.

It is not a weakly prime, because it can be changed into another prime (1022220999973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511110499836 + 511110499837.

It is an arithmetic number, because the mean of its divisors is an integer number (511110499837).

Almost surely, 2^{1022220999673} is an apocalyptic number.

It is an amenable number.

1022220999673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022220999673 is an equidigital number, since it uses as much as digits as its factorization.

1022220999673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 1022220999673 in words is "one trillion, twenty-two billion, two hundred twenty million, nine hundred ninety-nine thousand, six hundred seventy-three".