2220111112 has 8 divisors (see below), whose sum is σ = 4162708350. Its totient is φ = 1110055552.

The previous prime is 2220111079. The next prime is 2220111121. The reversal of 2220111112 is 2111110222.

It can be written as a sum of positive squares in only one way, i.e., 2193423556 + 26687556 = 46834^2 + 5166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2220111092 and 2220111101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138756937 + ... + 138756952.

Almost surely, 2^2220111112 is an apocalyptic number.

It is an amenable number.

2220111112 is a deficient number, since it is larger than the sum of its proper divisors (1942597238).

2220111112 is a wasteful number, since it uses less digits than its factorization.

2220111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277513895 (or 277513891 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2220111112 is about 47118.0550532383. The cubic root of 2220111112 is about 1304.5425136078.

Adding to 2220111112 its reverse (2111110222), we get a palindrome (4331221334).

The spelling of 2220111112 in words is "two billion, two hundred twenty million, one hundred eleven thousand, one hundred twelve".