1242012412 has 24 divisors (see below), whose sum is σ = 2221793280. Its totient is φ = 607238640.

The previous prime is 1242012403. The next prime is 1242012449. The reversal of 1242012412 is 2142102421.

It is a self number, because there is not a number n which added to its sum of digits gives 1242012412.

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, 268237 + ... + 272827.

It is an arithmetic number, because the mean of its divisors is an integer number (92574720).

Almost surely, 2^1242012412 is an apocalyptic number.

It is an amenable number.

1242012412 is a deficient number, since it is larger than the sum of its proper divisors (979780868).

1242012412 is a wasteful number, since it uses less digits than its factorization.

1242012412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6081 (or 6079 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1242012412 is about 35242.1964695732. The cubic root of 1242012412 is about 1074.9179420328.

Adding to 1242012412 its reverse (2142102421), we get a palindrome (3384114833).

Subtracting 1242012412 from its reverse (2142102421), we obtain a palindrome (900090009).

The spelling of 1242012412 in words is "one billion, two hundred forty-two million, twelve thousand, four hundred twelve".