4541221213442 has 4 divisors (see below), whose sum is σ = 6811831820166. Its totient is φ = 2270610606720.

The previous prime is 4541221213439. The next prime is 4541221213457. The reversal of 4541221213442 is 2443121221454.

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., 2533448405761 + 2007772807681 = 1591681^2 + 1416959^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135305303359 + ... + 1135305303362.

Almost surely, 2^{4541221213442} is an apocalyptic number.

4541221213442 is a deficient number, since it is larger than the sum of its proper divisors (2270610606724).

4541221213442 is a wasteful number, since it uses less digits than its factorization.

4541221213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270610606723.

The product of its digits is 61440, while the sum is 35.

Adding to 4541221213442 its reverse (2443121221454), we get a palindrome (6984342434896).

The spelling of 4541221213442 in words is "four trillion, five hundred forty-one billion, two hundred twenty-one million, two hundred thirteen thousand, four hundred forty-two".