112122121201 has 4 divisors (see below), whose sum is σ = 112123553652. Its totient is φ = 112120688752.

The previous prime is 112122121183. The next prime is 112122121261. The reversal of 112122121201 is 102121221211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102121221211 = 25771 ⋅3962641.

It can be written as a sum of positive squares in 2 ways, for example, as 41270328801 + 70851792400 = 203151^2 + 266180^2 .

It is a cyclic number.

It is not a de Polignac number, because 112122121201 - 2⁹ = 112122120689 is a prime.

It is a super-2 number, since 2×112122121201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112122121261) 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, 591586 + ... + 757771.

It is an arithmetic number, because the mean of its divisors is an integer number (28030888413).

Almost surely, 2^112122121201 is an apocalyptic number.

It is an amenable number.

112122121201 is a deficient number, since it is larger than the sum of its proper divisors (1432451).

112122121201 is an equidigital number, since it uses as much as digits as its factorization.

112122121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432450.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112122121201 its reverse (102121221211), we get a palindrome (214243342412).

The spelling of 112122121201 in words is "one hundred twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred one".