210112100001 has 48 divisors (see below), whose sum is σ = 327237493440. Its totient is φ = 129481752960.

The previous prime is 210112099993. The next prime is 210112100017. The reversal of 210112100001 is 100001211012.

It is a happy number.

It is not a de Polignac number, because 210112100001 - 2³ = 210112099993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (210112100501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7316611 + ... + 7345271.

It is an arithmetic number, because the mean of its divisors is an integer number (6817447780).

Almost surely, 2^210112100001 is an apocalyptic number.

It is an amenable number.

210112100001 is a deficient number, since it is larger than the sum of its proper divisors (117125393439).

210112100001 is a wasteful number, since it uses less digits than its factorization.

210112100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29726 (or 29723 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 210112100001 its reverse (100001211012), we get a palindrome (310113311013).

The spelling of 210112100001 in words is "two hundred ten billion, one hundred twelve million, one hundred thousand, one".