22112112102021 has 12 divisors (see below), whose sum is σ = 31961699411148. Its totient is φ = 14731262561664.

The previous prime is 22112112101987. The next prime is 22112112102071. The reversal of 22112112102021 is 12020121121122.

22112112102021 is a `hidden beast` number, since 221 + 1 + 211 + 210 + 2 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16965048888225 + 5147063213796 = 4118865^2 + 2268714^2 .

It is not a de Polignac number, because 22112112102021 - 2¹⁰ = 22112112100997 is a prime.

It is a super-2 number, since 2×22112112102021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22112112101985 and 22112112102003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112112102071) 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 11 ways as a sum of consecutive naturals, for example, 845445060 + ... + 845471213.

It is an arithmetic number, because the mean of its divisors is an integer number (2663474950929).

Almost surely, 2^{22112112102021} is an apocalyptic number.

It is an amenable number.

22112112102021 is a deficient number, since it is larger than the sum of its proper divisors (9849587309127).

22112112102021 is a wasteful number, since it uses less digits than its factorization.

22112112102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690917732 (or 1690917729 counting only the distinct ones).

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

Adding to 22112112102021 its reverse (12020121121122), we get a palindrome (34132233223143).

The spelling of 22112112102021 in words is "twenty-two trillion, one hundred twelve billion, one hundred twelve million, one hundred two thousand, twenty-one".