223144225261 has 2 divisors, whose sum is σ = 223144225262. Its totient is φ = 223144225260.

The previous prime is 223144225237. The next prime is 223144225273. The reversal of 223144225261 is 162522441322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142596109161 + 80548116100 = 377619^2 + 283810^2 .

It is a cyclic number.

It is not a de Polignac number, because 223144225261 - 2⁵ = 223144225229 is a prime.

It is a super-3 number, since 3×223144225261³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223144205261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111572112630 + 111572112631.

It is an arithmetic number, because the mean of its divisors is an integer number (111572112631).

Almost surely, 2^223144225261 is an apocalyptic number.

It is an amenable number.

223144225261 is a deficient number, since it is larger than the sum of its proper divisors (1).

223144225261 is an equidigital number, since it uses as much as digits as its factorization.

223144225261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 34.

Adding to 223144225261 its reverse (162522441322), we get a palindrome (385666666583).

The spelling of 223144225261 in words is "two hundred twenty-three billion, one hundred forty-four million, two hundred twenty-five thousand, two hundred sixty-one".