1244421334042 has 4 divisors (see below), whose sum is σ = 1866632001066. Its totient is φ = 622210667020.

The previous prime is 1244421334027. The next prime is 1244421334063. The reversal of 1244421334042 is 2404331244421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 929779991001 + 314641343041 = 964251^2 + 560929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1244421333989 and 1244421334007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311105333509 + ... + 311105333512.

Almost surely, 2^{1244421334042} is an apocalyptic number.

1244421334042 is a deficient number, since it is larger than the sum of its proper divisors (622210667024).

1244421334042 is an equidigital number, since it uses as much as digits as its factorization.

1244421334042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622210667023.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 1244421334042 its reverse (2404331244421), we get a palindrome (3648752578463).

The spelling of 1244421334042 in words is "one trillion, two hundred forty-four billion, four hundred twenty-one million, three hundred thirty-four thousand, forty-two".