1242224144012 has 6 divisors (see below), whose sum is σ = 2173892252028. Its totient is φ = 621112072004.

The previous prime is 1242224143999. The next prime is 1242224144017. The reversal of 1242224144012 is 2104414222421.

It is a super-2 number, since 2×1242224144012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1242224144017) by changing a digit.

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 as a sum of consecutive naturals, namely, 155278017998 + ... + 155278018005.

It is an arithmetic number, because the mean of its divisors is an integer number (362315375338).

Almost surely, 2^{1242224144012} is an apocalyptic number.

It is an amenable number.

1242224144012 is a deficient number, since it is larger than the sum of its proper divisors (931668108016).

1242224144012 is a wasteful number, since it uses less digits than its factorization.

1242224144012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310556036007 (or 310556036005 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 1242224144012 its reverse (2104414222421), we get a palindrome (3346638366433).

The spelling of 1242224144012 in words is "one trillion, two hundred forty-two billion, two hundred twenty-four million, one hundred forty-four thousand, twelve".