1242012112 has 40 divisors (see below), whose sum is σ = 2779589952. Its totient is φ = 531340800.

The previous prime is 1242012097. The next prime is 1242012137. The reversal of 1242012112 is 2112102421.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204564 + ... + 210547.

Almost surely, 2^1242012112 is an apocalyptic number.

It is an amenable number.

1242012112 is an abundant number, since it is smaller than the sum of its proper divisors (1537577840).

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

1242012112 is a wasteful number, since it uses less digits than its factorization.

1242012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415147 (or 415141 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1242012112 is about 35242.1922133116. The cubic root of 1242012112 is about 1074.9178554863.

Adding to 1242012112 its reverse (2112102421), we get a palindrome (3354114533).

The spelling of 1242012112 in words is "one billion, two hundred forty-two million, twelve thousand, one hundred twelve".