4541221213443 has 24 divisors (see below), whose sum is σ = 6584238301680. Its totient is φ = 3016083470400.

The previous prime is 4541221213439. The next prime is 4541221213457. The reversal of 4541221213443 is 3443121221454.

4541221213443 is a `hidden beast` number, since 4 + 5 + 412 + 21 + 213 + 4 + 4 + 3 = 666.

It is not a de Polignac number, because 4541221213443 - 2² = 4541221213439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4541221213398 and 4541221213407.

It is not an unprimeable number, because it can be changed into a prime (4541221213483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83863005 + ... + 83917137.

It is an arithmetic number, because the mean of its divisors is an integer number (274343262570).

Almost surely, 2^{4541221213443} is an apocalyptic number.

4541221213443 is a deficient number, since it is larger than the sum of its proper divisors (2043017088237).

4541221213443 is a wasteful number, since it uses less digits than its factorization.

4541221213443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89059 (or 89056 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 4541221213443 its reverse (3443121221454), we get a palindrome (7984342434897).

The spelling of 4541221213443 in words is "four trillion, five hundred forty-one billion, two hundred twenty-one million, two hundred thirteen thousand, four hundred forty-three".