4644221055112 has 32 divisors (see below), whose sum is σ = 8944052947200. Its totient is φ = 2259151349184.

The previous prime is 4644221055107. The next prime is 4644221055119. The reversal of 4644221055112 is 2115501224464.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (4644221055119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2694439 + ... + 4067977.

It is an arithmetic number, because the mean of its divisors is an integer number (279501654600).

Almost surely, 2^{4644221055112} is an apocalyptic number.

It is an amenable number.

4644221055112 is a deficient number, since it is larger than the sum of its proper divisors (4299831892088).

4644221055112 is a wasteful number, since it uses less digits than its factorization.

4644221055112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385005 (or 1385001 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 4644221055112 its reverse (2115501224464), we get a palindrome (6759722279576).

The spelling of 4644221055112 in words is "four trillion, six hundred forty-four billion, two hundred twenty-one million, fifty-five thousand, one hundred twelve".