112011222221 has 8 divisors (see below), whose sum is σ = 112299162360. Its totient is φ = 111723351552.

The previous prime is 112011222187. The next prime is 112011222227. The reversal of 112011222221 is 122222110211.

It can be written as a sum of positive squares in 4 ways, for example, as 23138668996 + 88872553225 = 152114^2 + 298115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112011222221 - 2¹⁰ = 112011221197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112011222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112011222227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5147861 + ... + 5169573.

It is an arithmetic number, because the mean of its divisors is an integer number (14037395295).

Almost surely, 2^112011222221 is an apocalyptic number.

It is an amenable number.

112011222221 is a deficient number, since it is larger than the sum of its proper divisors (287940139).

112011222221 is a wasteful number, since it uses less digits than its factorization.

112011222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34735.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 112011222221 its reverse (122222110211), we get a palindrome (234233332432).

The spelling of 112011222221 in words is "one hundred twelve billion, eleven million, two hundred twenty-two thousand, two hundred twenty-one".