2112211123 has 8 divisors (see below), whose sum is σ = 2312994816. Its totient is φ = 1912888200.

The previous prime is 2112211111. The next prime is 2112211139. The reversal of 2112211123 is 3211122112.

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 2112211123 - 2¹³ = 2112202931 is a prime.

It is a super-2 number, since 2×2112211123² = 8922871656249842258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112211097 and 2112211106.

It is not an unprimeable number, because it can be changed into a prime (2112211523) 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 7 ways as a sum of consecutive naturals, for example, 362163 + ... + 367948.

It is an arithmetic number, because the mean of its divisors is an integer number (289124352).

Almost surely, 2^2112211123 is an apocalyptic number.

2112211123 is a deficient number, since it is larger than the sum of its proper divisors (200783693).

2112211123 is a wasteful number, since it uses less digits than its factorization.

2112211123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730385.

The product of its digits is 48, while the sum is 16.

The square root of 2112211123 is about 45958.7981022132. The cubic root of 2112211123 is about 1283.0564821061.

Adding to 2112211123 its reverse (3211122112), we get a palindrome (5323333235).

The spelling of 2112211123 in words is "two billion, one hundred twelve million, two hundred eleven thousand, one hundred twenty-three".