112000021221 has 16 divisors (see below), whose sum is σ = 171483287040. Its totient is φ = 64306231920.

The previous prime is 112000021193. The next prime is 112000021229. The reversal of 112000021221 is 122120000211.

It is not a de Polignac number, because 112000021221 - 2⁶ = 112000021157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112000021197 and 112000021206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112000021229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89313585 + ... + 89314838.

It is an arithmetic number, because the mean of its divisors is an integer number (10717705440).

Almost surely, 2^112000021221 is an apocalyptic number.

112000021221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112000021221 is a deficient number, since it is larger than the sum of its proper divisors (59483265819).

112000021221 is a wasteful number, since it uses less digits than its factorization.

112000021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178628456.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 112000021221 its reverse (122120000211), we get a palindrome (234120021432).

The spelling of 112000021221 in words is "one hundred twelve billion, twenty-one thousand, two hundred twenty-one".