210111112001 has 24 divisors (see below), whose sum is σ = 254985706944. Its totient is φ = 169569482400.

The previous prime is 210111111989. The next prime is 210111112007. The reversal of 210111112001 is 100211111012.

It is not a de Polignac number, because 210111112001 - 2¹⁴ = 210111095617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210111112007) 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, 156851 + ... + 666951.

It is an arithmetic number, because the mean of its divisors is an integer number (10624404456).

Almost surely, 2^210111112001 is an apocalyptic number.

It is an amenable number.

210111112001 is a deficient number, since it is larger than the sum of its proper divisors (44874594943).

210111112001 is a wasteful number, since it uses less digits than its factorization.

210111112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510309 (or 510290 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 210111112001 its reverse (100211111012), we get a palindrome (310322223013).

It can be divided in two parts, 2101111 and 12001, that added together give a palindrome (2113112).

The spelling of 210111112001 in words is "two hundred ten billion, one hundred eleven million, one hundred twelve thousand, one".