222230132132221 has 2 divisors, whose sum is σ = 222230132132222. Its totient is φ = 222230132132220.

The previous prime is 222230132132179. The next prime is 222230132132273. The reversal of 222230132132221 is 122231231032222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133750034551225 + 88480097580996 = 11565035^2 + 9406386^2 .

It is a cyclic number.

It is not a de Polignac number, because 222230132132221 - 2¹³ = 222230132124029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222230132132221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222230132132291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111115066066110 + 111115066066111.

It is an arithmetic number, because the mean of its divisors is an integer number (111115066066111).

Almost surely, 2^{222230132132221} is an apocalyptic number.

It is an amenable number.

222230132132221 is a deficient number, since it is larger than the sum of its proper divisors (1).

222230132132221 is an equidigital number, since it uses as much as digits as its factorization.

222230132132221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 222230132132221 its reverse (122231231032222), we get a palindrome (344461363164443).

The spelling of 222230132132221 in words is "two hundred twenty-two trillion, two hundred thirty billion, one hundred thirty-two million, one hundred thirty-two thousand, two hundred twenty-one".