112222200121 has 4 divisors (see below), whose sum is σ = 113251761700. Its totient is φ = 111192638544.

The previous prime is 112222200107. The next prime is 112222200257. The reversal of 112222200121 is 121002222211.

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 102295066896 + 9927133225 = 319836^2 + 99635^2 .

It is a cyclic number.

It is not a de Polignac number, because 112222200121 - 2²⁹ = 111685329209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112222200095 and 112222200104.

It is not an unprimeable number, because it can be changed into a prime (112222800121) 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, 514780626 + ... + 514780843.

It is an arithmetic number, because the mean of its divisors is an integer number (28312940425).

Almost surely, 2^112222200121 is an apocalyptic number.

It is an amenable number.

112222200121 is a deficient number, since it is larger than the sum of its proper divisors (1029561579).

112222200121 is a wasteful number, since it uses less digits than its factorization.

112222200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029561578.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 112222200121 its reverse (121002222211), we get a palindrome (233224422332).

The spelling of 112222200121 in words is "one hundred twelve billion, two hundred twenty-two million, two hundred thousand, one hundred twenty-one".