22112211221123 has 8 divisors (see below), whose sum is σ = 22332690971136. Its totient is φ = 21891842973000.

The previous prime is 22112211221083. The next prime is 22112211221143. The reversal of 22112211221123 is 32112211221122.

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 22112211221123 - 2¹⁴ = 22112211204739 is a prime.

It is a super-2 number, since 2×22112211221123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112211221143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27476843 + ... + 28270148.

It is an arithmetic number, because the mean of its divisors is an integer number (2791586371392).

Almost surely, 2^{22112211221123} is an apocalyptic number.

22112211221123 is a deficient number, since it is larger than the sum of its proper divisors (220479750013).

22112211221123 is a wasteful number, since it uses less digits than its factorization.

22112211221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55750945.

The product of its digits is 384, while the sum is 23.

Adding to 22112211221123 its reverse (32112211221122), we get a palindrome (54224422442245).

Subtracting 22112211221123 from its reverse (32112211221122), we obtain a palindrome (9999999999999).

The spelling of 22112211221123 in words is "twenty-two trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, one hundred twenty-three".