1142242220012 has 12 divisors (see below), whose sum is σ = 1998940907040. Its totient is φ = 571116246576.

The previous prime is 1142242220003. The next prime is 1142242220033. The reversal of 1142242220012 is 2100222422411.

It is a self number, because there is not a number n which added to its sum of digits gives 1142242220012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659087 + ... + 1648902.

It is an arithmetic number, because the mean of its divisors is an integer number (166578408920).

Almost surely, 2^{1142242220012} is an apocalyptic number.

It is an amenable number.

1142242220012 is a deficient number, since it is larger than the sum of its proper divisors (856698687028).

1142242220012 is a wasteful number, since it uses less digits than its factorization.

1142242220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431720 (or 2431718 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 1142242220012 its reverse (2100222422411), we get a palindrome (3242464642423).

The spelling of 1142242220012 in words is "one trillion, one hundred forty-two billion, two hundred forty-two million, two hundred twenty thousand, twelve".