2021150017 has 2 divisors, whose sum is σ = 2021150018. Its totient is φ = 2021150016.

The previous prime is 2021149969. The next prime is 2021150081. The reversal of 2021150017 is 7100511202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2000683441 + 20466576 = 44729^2 + 4524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021150017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021149976 and 2021150003.

It is not a weakly prime, because it can be changed into another prime (2021150717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010575008 + 1010575009.

It is an arithmetic number, because the mean of its divisors is an integer number (1010575009).

Almost surely, 2^2021150017 is an apocalyptic number.

It is an amenable number.

2021150017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021150017 is an equidigital number, since it uses as much as digits as its factorization.

2021150017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 2021150017 is about 44957.2020592919. The cubic root of 2021150017 is about 1264.3467111656.

Adding to 2021150017 its reverse (7100511202), we get a palindrome (9121661219).

The spelling of 2021150017 in words is "two billion, twenty-one million, one hundred fifty thousand, seventeen".