221534404160242 has 8 divisors (see below), whose sum is σ = 349791164463600. Its totient is φ = 104937349339044.

The previous prime is 221534404160227. The next prime is 221534404160347. The reversal of 221534404160242 is 242061404435122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221534404160195 and 221534404160204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2914926370492 + ... + 2914926370567.

It is an arithmetic number, because the mean of its divisors is an integer number (43723895557950).

Almost surely, 2^{221534404160242} is an apocalyptic number.

221534404160242 is a deficient number, since it is larger than the sum of its proper divisors (128256760303358).

221534404160242 is a wasteful number, since it uses less digits than its factorization.

221534404160242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5829852741080.

The product of its (nonzero) digits is 368640, while the sum is 40.

Adding to 221534404160242 its reverse (242061404435122), we get a palindrome (463595808595364).

The spelling of 221534404160242 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred four million, one hundred sixty thousand, two hundred forty-two".