112112111100001 has 4 divisors (see below), whose sum is σ = 112112210718100. Its totient is φ = 112112011481904.

The previous prime is 112112111099971. The next prime is 112112111100007. The reversal of 112112111100001 is 100001111211211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39924402667776 + 72187708432225 = 6318576^2 + 8496335^2 .

It is a cyclic number.

It is not a de Polignac number, because 112112111100001 - 2¹⁷ = 112112110968929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112112111100007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48101406 + ... + 50378263.

It is an arithmetic number, because the mean of its divisors is an integer number (28028052679525).

Almost surely, 2^{112112111100001} is an apocalyptic number.

It is an amenable number.

112112111100001 is a deficient number, since it is larger than the sum of its proper divisors (99618099).

112112111100001 is an equidigital number, since it uses as much as digits as its factorization.

112112111100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99618098.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 112112111100001 its reverse (100001111211211), we get a palindrome (212113222311212).

The spelling of 112112111100001 in words is "one hundred twelve trillion, one hundred twelve billion, one hundred eleven million, one hundred thousand, one".