210012001 has 4 divisors (see below), whose sum is σ = 210937392. Its totient is φ = 209086612.

The previous prime is 210011981. The next prime is 210012013. The reversal of 210012001 is 100210012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210012001 - 2¹³ = 210003809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210012041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462355 + ... + 462808.

It is an arithmetic number, because the mean of its divisors is an integer number (52734348).

Almost surely, 2^210012001 is an apocalyptic number.

It is an amenable number.

210012001 is a deficient number, since it is larger than the sum of its proper divisors (925391).

210012001 is an equidigital number, since it uses as much as digits as its factorization.

210012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925390.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 210012001 is about 14491.7908141127. The cubic root of 210012001 is about 594.4035177602.

Adding to 210012001 its reverse (100210012), we get a palindrome (310222013).

The spelling of 210012001 in words is "two hundred ten million, twelve thousand, one".