112112012212221 has 24 divisors (see below), whose sum is σ = 175983055333344. Its totient is φ = 63292151465760.

The previous prime is 112112012212217. The next prime is 112112012212241. The reversal of 112112012212221 is 122212210211211.

It is not a de Polignac number, because 112112012212221 - 2² = 112112012212217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112112012212241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4594365810 + ... + 4594390211.

It is an arithmetic number, because the mean of its divisors is an integer number (7332627305556).

Almost surely, 2^{112112012212221} is an apocalyptic number.

It is an amenable number.

112112012212221 is a deficient number, since it is larger than the sum of its proper divisors (63871043121123).

112112012212221 is an equidigital number, since it uses as much as digits as its factorization.

112112012212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188756121 (or 9188756114 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 112112012212221 its reverse (122212210211211), we get a palindrome (234324222423432).

The spelling of 112112012212221 in words is "one hundred twelve trillion, one hundred twelve billion, twelve million, two hundred twelve thousand, two hundred twenty-one".