221342116024 has 128 divisors (see below), whose sum is σ = 459732049920. Its totient is φ = 99465062400.

The previous prime is 221342116001. The next prime is 221342116033. The reversal of 221342116024 is 420611243122.

It is a junction number, because it is equal to n+sod(n) for n = 221342115983 and 221342116001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104850729 + ... + 104852839.

It is an arithmetic number, because the mean of its divisors is an integer number (3591656640).

Almost surely, 2^221342116024 is an apocalyptic number.

It is an amenable number.

221342116024 is an abundant number, since it is smaller than the sum of its proper divisors (238389933896).

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

221342116024 is a wasteful number, since it uses less digits than its factorization.

221342116024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 221342116024 its reverse (420611243122), we get a palindrome (641953359146).

The spelling of 221342116024 in words is "two hundred twenty-one billion, three hundred forty-two million, one hundred sixteen thousand, twenty-four".