221034115255 has 8 divisors (see below), whose sum is σ = 266297676624. Its totient is φ = 176122800000.

The previous prime is 221034115241. The next prime is 221034115261. The reversal of 221034115255 is 552511430122.

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

It is not a de Polignac number, because 221034115255 - 2¹¹ = 221034113207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88060146 + ... + 88062655.

It is an arithmetic number, because the mean of its divisors is an integer number (33287209578).

Almost surely, 2^221034115255 is an apocalyptic number.

221034115255 is a deficient number, since it is larger than the sum of its proper divisors (45263561369).

221034115255 is a wasteful number, since it uses less digits than its factorization.

221034115255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176123057.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 221034115255 its reverse (552511430122), we get a palindrome (773545545377).

The spelling of 221034115255 in words is "two hundred twenty-one billion, thirty-four million, one hundred fifteen thousand, two hundred fifty-five".