1020112221017 has 2 divisors, whose sum is σ = 1020112221018. Its totient is φ = 1020112221016.

The previous prime is 1020112220993. The next prime is 1020112221047. The reversal of 1020112221017 is 7101222110201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667471026121 + 352641194896 = 816989^2 + 593836^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020112221017 - 2¹⁴ = 1020112204633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020112221017.

It is not a weakly prime, because it can be changed into another prime (1020112221047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510056110508 + 510056110509.

It is an arithmetic number, because the mean of its divisors is an integer number (510056110509).

Almost surely, 2^{1020112221017} is an apocalyptic number.

It is an amenable number.

1020112221017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020112221017 is an equidigital number, since it uses as much as digits as its factorization.

1020112221017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 1020112221017 its reverse (7101222110201), we get a palindrome (8121334331218).

The spelling of 1020112221017 in words is "one trillion, twenty billion, one hundred twelve million, two hundred twenty-one thousand, seventeen".