1232112223111 has 32 divisors (see below), whose sum is σ = 1611883929600. Its totient is φ = 913213862880.

The previous prime is 1232112223087. The next prime is 1232112223141. The reversal of 1232112223111 is 1113222112321.

It is a happy number.

It is not a de Polignac number, because 1232112223111 - 2⁹ = 1232112222599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232112223141) 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 31 ways as a sum of consecutive naturals, for example, 1626331 + ... + 2260348.

It is an arithmetic number, because the mean of its divisors is an integer number (50371372800).

Almost surely, 2^{1232112223111} is an apocalyptic number.

1232112223111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1232112223111 is a deficient number, since it is larger than the sum of its proper divisors (379771706489).

1232112223111 is a wasteful number, since it uses less digits than its factorization.

1232112223111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886899.

The product of its digits is 288, while the sum is 22.

Adding to 1232112223111 its reverse (1113222112321), we get a palindrome (2345334335432).

The spelling of 1232112223111 in words is "one trillion, two hundred thirty-two billion, one hundred twelve million, two hundred twenty-three thousand, one hundred eleven".