10019182021 has 2 divisors, whose sum is σ = 10019182022. Its totient is φ = 10019182020.

The previous prime is 10019181983. The next prime is 10019182039. The reversal of 10019182021 is 12028191001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9942881796 + 76300225 = 99714^2 + 8735^2 .

It is a cyclic number.

It is not a de Polignac number, because 10019182021 - 2⁹ = 10019181509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10019182081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5009591010 + 5009591011.

It is an arithmetic number, because the mean of its divisors is an integer number (5009591011).

Almost surely, 2^10019182021 is an apocalyptic number.

It is an amenable number.

10019182021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10019182021 is an equidigital number, since it uses as much as digits as its factorization.

10019182021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 10019182021 in words is "ten billion, nineteen million, one hundred eighty-two thousand, twenty-one".