221034112355 has 16 divisors (see below), whose sum is σ = 303173280000. Its totient is φ = 151545856992.

The previous prime is 221034112349. The next prime is 221034112357. The reversal of 221034112355 is 553211430122.

It is a cyclic number.

It is not a de Polignac number, because 221034112355 - 2¹⁸ = 221033850211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221034112357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158609 + ... + 683538.

It is an arithmetic number, because the mean of its divisors is an integer number (18948330000).

Almost surely, 2^221034112355 is an apocalyptic number.

221034112355 is a deficient number, since it is larger than the sum of its proper divisors (82139167645).

221034112355 is an equidigital number, since it uses as much as digits as its factorization.

221034112355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849658.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 221034112355 its reverse (553211430122), we get a palindrome (774245542477).

The spelling of 221034112355 in words is "two hundred twenty-one billion, thirty-four million, one hundred twelve thousand, three hundred fifty-five".