2112123223011 has 4 divisors (see below), whose sum is σ = 2816164297352. Its totient is φ = 1408082148672.

The previous prime is 2112123222977. The next prime is 2112123223043. The reversal of 2112123223011 is 1103223212112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2112123223011 - 2⁷ = 2112123222883 is a prime.

It is a super-2 number, since 2×2112123223011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112125223011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352020537166 + ... + 352020537171.

It is an arithmetic number, because the mean of its divisors is an integer number (704041074338).

Almost surely, 2^{2112123223011} is an apocalyptic number.

2112123223011 is a deficient number, since it is larger than the sum of its proper divisors (704041074341).

2112123223011 is an equidigital number, since it uses as much as digits as its factorization.

2112123223011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704041074340.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2112123223011 its reverse (1103223212112), we get a palindrome (3215346435123).

The spelling of 2112123223011 in words is "two trillion, one hundred twelve billion, one hundred twenty-three million, two hundred twenty-three thousand, eleven".