112221021221 has 8 divisors (see below), whose sum is σ = 113640664704. Its totient is φ = 110810278800.

The previous prime is 112221021193. The next prime is 112221021257. The reversal of 112221021221 is 122120122211.

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 112221021221 - 2¹⁴ = 112221004837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 112221021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221021271) 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, 2199890 + ... + 2250323.

It is an arithmetic number, because the mean of its divisors is an integer number (14205083088).

Almost surely, 2^112221021221 is an apocalyptic number.

It is an amenable number.

112221021221 is a deficient number, since it is larger than the sum of its proper divisors (1419643483).

112221021221 is a wasteful number, since it uses less digits than its factorization.

112221021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450531.

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

Adding to 112221021221 its reverse (122120122211), we get a palindrome (234341143432).

The spelling of 112221021221 in words is "one hundred twelve billion, two hundred twenty-one million, twenty-one thousand, two hundred twenty-one".