4243221312040 has 64 divisors (see below), whose sum is σ = 9942438389760. Its totient is φ = 1628001500160.

The previous prime is 4243221312023. The next prime is 4243221312061. The reversal of 4243221312040 is 402131223424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15001264 + ... + 15281503.

It is an arithmetic number, because the mean of its divisors is an integer number (155350599840).

Almost surely, 2^{4243221312040} is an apocalyptic number.

4243221312040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4243221312040 is an abundant number, since it is smaller than the sum of its proper divisors (5699217077720).

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

4243221312040 is a wasteful number, since it uses less digits than its factorization.

4243221312040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30282922 (or 30282918 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 4243221312040 its reverse (402131223424), we get a palindrome (4645352535464).

The spelling of 4243221312040 in words is "four trillion, two hundred forty-three billion, two hundred twenty-one million, three hundred twelve thousand, forty".