1112112211231 has 16 divisors (see below), whose sum is σ = 1314851135040. Its totient is φ = 920341658880.

The previous prime is 1112112211211. The next prime is 1112112211253. The reversal of 1112112211231 is 1321122112111.

It is not a de Polignac number, because 1112112211231 - 2⁹ = 1112112210719 is a prime.

It is a super-2 number, since 2×1112112211231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112112211199 and 1112112211208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112112211211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9841491 + ... + 9953851.

It is an arithmetic number, because the mean of its divisors is an integer number (82178195940).

Almost surely, 2^{1112112211231} is an apocalyptic number.

1112112211231 is a deficient number, since it is larger than the sum of its proper divisors (202738923809).

1112112211231 is a wasteful number, since it uses less digits than its factorization.

1112112211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161154.

The product of its digits is 48, while the sum is 19.

Adding to 1112112211231 its reverse (1321122112111), we get a palindrome (2433234323342).

The spelling of 1112112211231 in words is "one trillion, one hundred twelve billion, one hundred twelve million, two hundred eleven thousand, two hundred thirty-one".