1244213401242 has 32 divisors (see below), whose sum is σ = 2843982249984. Its totient is φ = 355481305200.

The previous prime is 1244213401241. The next prime is 1244213401261. The reversal of 1244213401242 is 2421043124421.

It is not an unprimeable number, because it can be changed into a prime (1244213401241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1623267 + ... + 2263497.

It is an arithmetic number, because the mean of its divisors is an integer number (88874445312).

Almost surely, 2^{1244213401242} is an apocalyptic number.

1244213401242 is an abundant number, since it is smaller than the sum of its proper divisors (1599768848742).

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

1244213401242 is a wasteful number, since it uses less digits than its factorization.

1244213401242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686514.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 1244213401242 its reverse (2421043124421), we get a palindrome (3665256525663).

The spelling of 1244213401242 in words is "one trillion, two hundred forty-four billion, two hundred thirteen million, four hundred one thousand, two hundred forty-two".