112221112021 has 8 divisors (see below), whose sum is σ = 114787314104. Its totient is φ = 109678345920.

The previous prime is 112221111983. The next prime is 112221112039. The reversal of 112221112021 is 120211122211.

It can be written as a sum of positive squares in 4 ways, for example, as 605652100 + 111615459921 = 24610^2 + 334089^2 .

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 112221112021 - 2¹³ = 112221103829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112221111986 and 112221112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221122021) 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 7 ways as a sum of consecutive naturals, for example, 5849310 + ... + 5868463.

It is an arithmetic number, because the mean of its divisors is an integer number (14348414263).

Almost surely, 2^112221112021 is an apocalyptic number.

It is an amenable number.

112221112021 is a deficient number, since it is larger than the sum of its proper divisors (2566202083).

112221112021 is a wasteful number, since it uses less digits than its factorization.

112221112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11717991.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112221112021 its reverse (120211122211), we get a palindrome (232432234232).

The spelling of 112221112021 in words is "one hundred twelve billion, two hundred twenty-one million, one hundred twelve thousand, twenty-one".