229054131221 has 2 divisors, whose sum is σ = 229054131222. Its totient is φ = 229054131220.

The previous prime is 229054131211. The next prime is 229054131239. The reversal of 229054131221 is 122131450922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153261288196 + 75792843025 = 391486^2 + 275305^2 .

It is a cyclic number.

It is not a de Polignac number, because 229054131221 - 2¹⁰ = 229054130197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229054131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114527065610 + 114527065611.

It is an arithmetic number, because the mean of its divisors is an integer number (114527065611).

Almost surely, 2^229054131221 is an apocalyptic number.

It is an amenable number.

229054131221 is a deficient number, since it is larger than the sum of its proper divisors (1).

229054131221 is an equidigital number, since it uses as much as digits as its factorization.

229054131221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 229054131221 in words is "two hundred twenty-nine billion, fifty-four million, one hundred thirty-one thousand, two hundred twenty-one".