210111210001 has 24 divisors (see below), whose sum is σ = 265712932800. Its totient is φ = 162624110880.

The previous prime is 210111209993. The next prime is 210111210013. The reversal of 210111210001 is 100012111012.

It is not a de Polignac number, because 210111210001 - 2³ = 210111209993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210111210001.

It is not an unprimeable number, because it can be changed into a prime (210111210401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 706231 + ... + 958636.

It is an arithmetic number, because the mean of its divisors is an integer number (11071372200).

Almost surely, 2^210111210001 is an apocalyptic number.

It is an amenable number.

210111210001 is a deficient number, since it is larger than the sum of its proper divisors (55601722799).

210111210001 is a wasteful number, since it uses less digits than its factorization.

210111210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665045 (or 1665034 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 210111210001 its reverse (100012111012), we get a palindrome (310123321013).

The spelling of 210111210001 in words is "two hundred ten billion, one hundred eleven million, two hundred ten thousand, one".