223012444261 has 2 divisors, whose sum is σ = 223012444262. Its totient is φ = 223012444260.

The previous prime is 223012444223. The next prime is 223012444331. The reversal of 223012444261 is 162444210322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220553276161 + 2459168100 = 469631^2 + 49590^2 .

It is a cyclic number.

It is not a de Polignac number, because 223012444261 - 2³⁵ = 188652705893 is a prime.

It is a super-2 number, since 2×223012444261² (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 (223012447261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111506222130 + 111506222131.

It is an arithmetic number, because the mean of its divisors is an integer number (111506222131).

Almost surely, 2^223012444261 is an apocalyptic number.

It is an amenable number.

223012444261 is a deficient number, since it is larger than the sum of its proper divisors (1).

223012444261 is an equidigital number, since it uses as much as digits as its factorization.

223012444261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 223012444261 its reverse (162444210322), we get a palindrome (385456654583).

The spelling of 223012444261 in words is "two hundred twenty-three billion, twelve million, four hundred forty-four thousand, two hundred sixty-one".