1112121012 has 24 divisors (see below), whose sum is σ = 2637490912. Its totient is φ = 364629600.

The previous prime is 1112120987. The next prime is 1112121071. The reversal of 1112121012 is 2101212111.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 758914 + ... + 760377.

Almost surely, 2^1112121012 is an apocalyptic number.

1112121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1112121012 is an abundant number, since it is smaller than the sum of its proper divisors (1525369900).

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

1112121012 is a wasteful number, since it uses less digits than its factorization.

1112121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519359 (or 1519357 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1112121012 is about 33348.4784060682. The cubic root of 1112121012 is about 1036.0578733143.

Adding to 1112121012 its reverse (2101212111), we get a palindrome (3213333123).

The spelling of 1112121012 in words is "one billion, one hundred twelve million, one hundred twenty-one thousand, twelve".