221211022332143 has 2 divisors, whose sum is σ = 221211022332144. Its totient is φ = 221211022332142.

The previous prime is 221211022332109. The next prime is 221211022332371. The reversal of 221211022332143 is 341233220112122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221211022332143 - 2⁴⁰ = 220111510704367 is a prime.

It is a super-2 number, since 2×221211022332143² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221211022332943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110605511166071 + 110605511166072.

It is an arithmetic number, because the mean of its divisors is an integer number (110605511166072).

Almost surely, 2^{221211022332143} is an apocalyptic number.

221211022332143 is a deficient number, since it is larger than the sum of its proper divisors (1).

221211022332143 is an equidigital number, since it uses as much as digits as its factorization.

221211022332143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 221211022332143 its reverse (341233220112122), we get a palindrome (562444242444265).

The spelling of 221211022332143 in words is "two hundred twenty-one trillion, two hundred eleven billion, twenty-two million, three hundred thirty-two thousand, one hundred forty-three".