112122133112221 has 4 divisors (see below), whose sum is σ = 112168141376092. Its totient is φ = 112076124848352.

The previous prime is 112122133112201. The next prime is 112122133112273. The reversal of 112122133112221 is 122211331221211.

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 74435671567321 + 37686461544900 = 8627611^2 + 6138930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112122133112221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112122133112201) 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, 23004128280 + ... + 23004133153.

It is an arithmetic number, because the mean of its divisors is an integer number (28042035344023).

Almost surely, 2^{112122133112221} is an apocalyptic number.

It is an amenable number.

112122133112221 is a deficient number, since it is larger than the sum of its proper divisors (46008263871).

112122133112221 is an equidigital number, since it uses as much as digits as its factorization.

112122133112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46008263870.

The product of its digits is 576, while the sum is 25.

Adding to 112122133112221 its reverse (122211331221211), we get a palindrome (234333464333432).

The spelling of 112122133112221 in words is "one hundred twelve trillion, one hundred twenty-two billion, one hundred thirty-three million, one hundred twelve thousand, two hundred twenty-one".