112202220121 has 4 divisors (see below), whose sum is σ = 112212437812. Its totient is φ = 112192002432.

The previous prime is 112202220083. The next prime is 112202220253. The reversal of 112202220121 is 121022202211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121022202211 = 103 ⋅1174972837.

It can be written as a sum of positive squares in 2 ways, for example, as 7316920521 + 104885299600 = 85539^2 + 323860^2 .

It is a cyclic number.

It is not a de Polignac number, because 112202220121 - 2²⁵ = 112168665689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112202220095 and 112202220104.

It is not an unprimeable number, because it can be changed into a prime (112202220521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5092356 + ... + 5114341.

It is an arithmetic number, because the mean of its divisors is an integer number (28053109453).

Almost surely, 2^112202220121 is an apocalyptic number.

It is an amenable number.

112202220121 is a deficient number, since it is larger than the sum of its proper divisors (10217691).

112202220121 is a wasteful number, since it uses less digits than its factorization.

112202220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217690.

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

Adding to 112202220121 its reverse (121022202211), we get a palindrome (233224422332).

The spelling of 112202220121 in words is "one hundred twelve billion, two hundred two million, two hundred twenty thousand, one hundred twenty-one".