222227462775221 has 2 divisors, whose sum is σ = 222227462775222. Its totient is φ = 222227462775220.

The previous prime is 222227462775211. The next prime is 222227462775233. The reversal of 222227462775221 is 122577264722222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219339210111025 + 2888252664196 = 14810105^2 + 1699486^2 .

It is a cyclic number.

It is not a de Polignac number, because 222227462775221 - 2¹⁰ = 222227462774197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222227462775211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111113731387610 + 111113731387611.

It is an arithmetic number, because the mean of its divisors is an integer number (111113731387611).

Almost surely, 2^{222227462775221} is an apocalyptic number.

It is an amenable number.

222227462775221 is a deficient number, since it is larger than the sum of its proper divisors (1).

222227462775221 is an equidigital number, since it uses as much as digits as its factorization.

222227462775221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10536960, while the sum is 53.

The spelling of 222227462775221 in words is "two hundred twenty-two trillion, two hundred twenty-seven billion, four hundred sixty-two million, seven hundred seventy-five thousand, two hundred twenty-one".