221100535343 has 2 divisors, whose sum is σ = 221100535344. Its totient is φ = 221100535342.

The previous prime is 221100535333. The next prime is 221100535349. The reversal of 221100535343 is 343535001122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221100535343 - 2¹² = 221100531247 is a prime.

It is a super-2 number, since 2×221100535343² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221100535349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550267671 + 110550267672.

It is an arithmetic number, because the mean of its divisors is an integer number (110550267672).

Almost surely, 2^221100535343 is an apocalyptic number.

221100535343 is a deficient number, since it is larger than the sum of its proper divisors (1).

221100535343 is an equidigital number, since it uses as much as digits as its factorization.

221100535343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 221100535343 its reverse (343535001122), we get a palindrome (564635536465).

The spelling of 221100535343 in words is "two hundred twenty-one billion, one hundred million, five hundred thirty-five thousand, three hundred forty-three".