2112111236 has 6 divisors (see below), whose sum is σ = 3696194670. Its totient is φ = 1056055616.

The previous prime is 2112111217. The next prime is 2112111241. The reversal of 2112111236 is 6321112112.

It can be written as a sum of positive squares in only one way, i.e., 1999878400 + 112232836 = 44720^2 + 10594^2 .

It is a super-2 number, since 2×2112111236² = 8922027746474895392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264013901 + ... + 264013908.

It is an arithmetic number, because the mean of its divisors is an integer number (616032445).

Almost surely, 2^2112111236 is an apocalyptic number.

It is an amenable number.

2112111236 is a deficient number, since it is larger than the sum of its proper divisors (1584083434).

2112111236 is a wasteful number, since it uses less digits than its factorization.

2112111236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528027813 (or 528027811 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 2112111236 is about 45957.7113877530. The cubic root of 2112111236 is about 1283.0362564317.

Adding to 2112111236 its reverse (6321112112), we get a palindrome (8433223348).

The spelling of 2112111236 in words is "two billion, one hundred twelve million, one hundred eleven thousand, two hundred thirty-six".