1112100012 has 36 divisors (see below), whose sum is σ = 2812930120. Its totient is φ = 370464192.

The previous prime is 1112099993. The next prime is 1112100023. The reversal of 1112100012 is 2100012111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1112099967 and 1112100003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53064 + ... + 70992.

Almost surely, 2^1112100012 is an apocalyptic number.

1112100012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1112100012 is an abundant number, since it is smaller than the sum of its proper divisors (1700830108).

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

1112100012 is a wasteful number, since it uses less digits than its factorization.

1112100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19662 (or 19657 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1112100012 is about 33348.1635476378. The cubic root of 1112100012 is about 1036.0513520358.

Adding to 1112100012 its reverse (2100012111), we get a palindrome (3212112123).

It can be divided in two parts, 1112 and 100012, that added together give a square (101124 = 318²).

The spelling of 1112100012 in words is "one billion, one hundred twelve million, one hundred thousand, twelve".