1200111112 has 16 divisors (see below), whose sum is σ = 2348043840. Its totient is φ = 573966096.

The previous prime is 1200111061. The next prime is 1200111119. The reversal of 1200111112 is 2111110021.

It is a super-2 number, since 2×1200111112² = 2880533362291753088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1200111119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3260988 + ... + 3261355.

It is an arithmetic number, because the mean of its divisors is an integer number (146752740).

Almost surely, 2^1200111112 is an apocalyptic number.

It is an amenable number.

1200111112 is a deficient number, since it is larger than the sum of its proper divisors (1147932728).

1200111112 is a wasteful number, since it uses less digits than its factorization.

1200111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522372 (or 6522368 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1200111112 is about 34642.6198778326. The cubic root of 1200111112 is about 1062.6913665367.

Adding to 1200111112 its reverse (2111110021), we get a palindrome (3311221133).

The spelling of 1200111112 in words is "one billion, two hundred million, one hundred eleven thousand, one hundred twelve".