112212221100021 has 24 divisors (see below), whose sum is σ = 190245687600384. Its totient is φ = 62388261923040.

The previous prime is 112212221100019. The next prime is 112212221100059. The reversal of 112212221100021 is 120001122212211.

112212221100021 is a `hidden beast` number, since 112 + 212 + 221 + 100 + 0 + 21 = 666.

It is not a de Polignac number, because 112212221100021 - 2¹ = 112212221100019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112212221099967 and 112212221100003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212221300021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24069543165 + ... + 24069547826.

It is an arithmetic number, because the mean of its divisors is an integer number (7926903650016).

Almost surely, 2^{112212221100021} is an apocalyptic number.

It is an amenable number.

112212221100021 is a deficient number, since it is larger than the sum of its proper divisors (78033466500363).

112212221100021 is a wasteful number, since it uses less digits than its factorization.

112212221100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48139091041 (or 48139091038 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 112212221100021 its reverse (120001122212211), we get a palindrome (232213343312232).

The spelling of 112212221100021 in words is "one hundred twelve trillion, two hundred twelve billion, two hundred twenty-one million, one hundred thousand, twenty-one".