221533612413352 has 16 divisors (see below), whose sum is σ = 415378544780160. Its totient is φ = 110766000471984.

The previous prime is 221533612413343. The next prime is 221533612413383. The reversal of 221533612413352 is 253314216335122.

It is a junction number, because it is equal to n+sod(n) for n = 221533612413299 and 221533612413308.

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, 99547518 + ... + 101748589.

It is an arithmetic number, because the mean of its divisors is an integer number (25961159048760).

Almost surely, 2^{221533612413352} is an apocalyptic number.

It is an amenable number.

221533612413352 is a deficient number, since it is larger than the sum of its proper divisors (193844932366808).

221533612413352 is a wasteful number, since it uses less digits than its factorization.

221533612413352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201433680 (or 201433676 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

Adding to 221533612413352 its reverse (253314216335122), we get a palindrome (474847828748474).

The spelling of 221533612413352 in words is "two hundred twenty-one trillion, five hundred thirty-three billion, six hundred twelve million, four hundred thirteen thousand, three hundred fifty-two".