1240021234444 has 6 divisors (see below), whose sum is σ = 2170037160284. Its totient is φ = 620010617220.

The previous prime is 1240021234423. The next prime is 1240021234457. The reversal of 1240021234444 is 4444321200421.

It is a happy number.

It is a super-2 number, since 2×1240021234444² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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, 155002654302 + ... + 155002654309.

Almost surely, 2^{1240021234444} is an apocalyptic number.

It is an amenable number.

1240021234444 is a deficient number, since it is larger than the sum of its proper divisors (930015925840).

1240021234444 is a wasteful number, since it uses less digits than its factorization.

1240021234444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310005308615 (or 310005308613 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 1240021234444 its reverse (4444321200421), we get a palindrome (5684342434865).

The spelling of 1240021234444 in words is "one trillion, two hundred forty billion, twenty-one million, two hundred thirty-four thousand, four hundred forty-four".