1012112120 has 16 divisors (see below), whose sum is σ = 2277252360. Its totient is φ = 404844832.

The previous prime is 1012112099. The next prime is 1012112141. The reversal of 1012112120 is 212112101.

It is an interprime number because it is at equal distance from previous prime (1012112099) and next prime (1012112141).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12651362 + ... + 12651441.

Almost surely, 2^1012112120 is an apocalyptic number.

1012112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012112120 is an abundant number, since it is smaller than the sum of its proper divisors (1265140240).

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

1012112120 is a wasteful number, since it uses less digits than its factorization.

1012112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25302814 (or 25302810 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1012112120 is about 31813.7096233684. The cubic root of 1012112120 is about 1004.0211817566.

Adding to 1012112120 its reverse (212112101), we get a palindrome (1224224221).

The spelling of 1012112120 in words is "one billion, twelve million, one hundred twelve thousand, one hundred twenty".