221522045511223 has 2 divisors, whose sum is σ = 221522045511224. Its totient is φ = 221522045511222.

The previous prime is 221522045511113. The next prime is 221522045511241. The reversal of 221522045511223 is 322115540225122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221522045511223 - 2²¹ = 221522043414071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221522045514223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110761022755611 + 110761022755612.

It is an arithmetic number, because the mean of its divisors is an integer number (110761022755612).

Almost surely, 2^{221522045511223} is an apocalyptic number.

221522045511223 is a deficient number, since it is larger than the sum of its proper divisors (1).

221522045511223 is an equidigital number, since it uses as much as digits as its factorization.

221522045511223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 221522045511223 its reverse (322115540225122), we get a palindrome (543637585736345).

The spelling of 221522045511223 in words is "two hundred twenty-one trillion, five hundred twenty-two billion, forty-five million, five hundred eleven thousand, two hundred twenty-three".