112122111001 has 4 divisors (see below), whose sum is σ = 112125480292. Its totient is φ = 112118741712.

The previous prime is 112122110999. The next prime is 112122111007. The reversal of 112122111001 is 100111221211.

It is a happy number.

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 51721675776 + 60400435225 = 227424^2 + 245765^2 .

It is a cyclic number.

It is not a de Polignac number, because 112122111001 - 2¹ = 112122110999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112122111007) 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, 1634226 + ... + 1701451.

It is an arithmetic number, because the mean of its divisors is an integer number (28031370073).

Almost surely, 2^112122111001 is an apocalyptic number.

It is an amenable number.

112122111001 is a deficient number, since it is larger than the sum of its proper divisors (3369291).

112122111001 is an equidigital number, since it uses as much as digits as its factorization.

112122111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369290.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 112122111001 its reverse (100111221211), we get a palindrome (212233332212).

The spelling of 112122111001 in words is "one hundred twelve billion, one hundred twenty-two million, one hundred eleven thousand, one".