1122111312 has 40 divisors (see below), whose sum is σ = 3312901056. Its totient is φ = 320603136.

The previous prime is 1122111271. The next prime is 1122111337. The reversal of 1122111312 is 2131112211.

It is a super-2 number, since 2×1122111312² = 2518267593036722688, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1122111291 and 1122111300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669473 + ... + 1670144.

Almost surely, 2^1122111312 is an apocalyptic number.

1122111312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122111312 is an abundant number, since it is smaller than the sum of its proper divisors (2190789744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122111312 is a wasteful number, since it uses less digits than its factorization.

1122111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339635 (or 3339629 counting only the distinct ones).

The product of its digits is 24, while the sum is 15.

The square root of 1122111312 is about 33497.9299658949. The cubic root of 1122111312 is about 1039.1509687955.

Adding to 1122111312 its reverse (2131112211), we get a palindrome (3253223523).

The spelling of 1122111312 in words is "one billion, one hundred twenty-two million, one hundred eleven thousand, three hundred twelve".