10012001 has 2 divisors, whose sum is σ = 10012002. Its totient is φ = 10012000.

The previous prime is 10011979. The next prime is 10012019. The reversal of 10012001 is 10021001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9333025 + 678976 = 3055^2 + 824^2 .

It is an emirp because it is prime and its reverse (10021001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10012001 - 2¹⁴ = 9995617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10012021) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006000 + 5006001.

It is an arithmetic number, because the mean of its divisors is an integer number (5006001).

Almost surely, 2^10012001 is an apocalyptic number.

It is an amenable number.

10012001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012001 is an equidigital number, since it uses as much as digits as its factorization.

10012001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 10012001 is about 3164.1746159149. The cubic root of 10012001 is about 215.5296191185.

Adding to 10012001 its reverse (10021001), we get a palindrome (20033002).

Multiplying 10012001 by its reverse (10021001), we get a palindrome (100330272033001).

It can be divided in two parts, 1001 and 2001, that multiplied together give a triangular number (2003001 = T₂₀₀₁).

The spelling of 10012001 in words is "ten million, twelve thousand, one".