1002220121017 has 2 divisors, whose sum is σ = 1002220121018. Its totient is φ = 1002220121016.

The previous prime is 1002220121003. The next prime is 1002220121027. The reversal of 1002220121017 is 7101210222001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1002219229881 + 891136 = 1001109^2 + 944^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002220121017 - 2³⁵ = 967860382649 is a prime.

It is a super-2 number, since 2×1002220121017² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002220120985 and 1002220121003.

It is not a weakly prime, because it can be changed into another prime (1002220121027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501110060508 + 501110060509.

It is an arithmetic number, because the mean of its divisors is an integer number (501110060509).

Almost surely, 2^{1002220121017} is an apocalyptic number.

It is an amenable number.

1002220121017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002220121017 is an equidigital number, since it uses as much as digits as its factorization.

1002220121017 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 19.

Adding to 1002220121017 its reverse (7101210222001), we get a palindrome (8103430343018).

The spelling of 1002220121017 in words is "one trillion, two billion, two hundred twenty million, one hundred twenty-one thousand, seventeen".