210000112100001 has 6 divisors (see below), whose sum is σ = 303333495255570. Its totient is φ = 140000074733328.

The previous prime is 210000112099949. The next prime is 210000112100003. The reversal of 210000112100001 is 100001211000012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 202044192350625 + 7955919749376 = 14214225^2 + 2820624^2 .

It is not a de Polignac number, because 210000112100001 - 2²⁷ = 209999977882273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 23333345788889 = 210000112100001 / (2 + 1 + 0 + 0 + 0 + 0 + 1 + 1 + 2 + 1 + 0 + 0 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (210000112100003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11666672894436 + ... + 11666672894453.

It is an arithmetic number, because the mean of its divisors is an integer number (50555582542595).

Almost surely, 2^{210000112100001} is an apocalyptic number.

It is an amenable number.

210000112100001 is a deficient number, since it is larger than the sum of its proper divisors (93333383155569).

210000112100001 is a wasteful number, since it uses less digits than its factorization.

210000112100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23333345788895 (or 23333345788892 counting only the distinct ones).

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

Adding to 210000112100001 its reverse (100001211000012), we get a palindrome (310001323100013).

The spelling of 210000112100001 in words is "two hundred ten trillion, one hundred twelve million, one hundred thousand, one".