2231021021017 has 2 divisors, whose sum is σ = 2231021021018. Its totient is φ = 2231021021016.

The previous prime is 2231021020997. The next prime is 2231021021069. The reversal of 2231021021017 is 7101201201322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1981396879641 + 249624141376 = 1407621^2 + 499624^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231021021017 - 2³⁹ = 1681265207129 is a prime.

It is a super-3 number, since 3×2231021021017³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231021031017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115510510508 + 1115510510509.

It is an arithmetic number, because the mean of its divisors is an integer number (1115510510509).

Almost surely, 2^{2231021021017} is an apocalyptic number.

It is an amenable number.

2231021021017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231021021017 is an equidigital number, since it uses as much as digits as its factorization.

2231021021017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 2231021021017 its reverse (7101201201322), we get a palindrome (9332222222339).

The spelling of 2231021021017 in words is "two trillion, two hundred thirty-one billion, twenty-one million, twenty-one thousand, seventeen".