221434011220229 has 2 divisors, whose sum is σ = 221434011220230. Its totient is φ = 221434011220228.

The previous prime is 221434011220181. The next prime is 221434011220307. The reversal of 221434011220229 is 922022110434122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195019828502500 + 26414182717729 = 13964950^2 + 5139473^2 .

It is a cyclic number.

It is not a de Polignac number, because 221434011220229 - 2²⁰ = 221434010171653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221434011210229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110717005610114 + 110717005610115.

It is an arithmetic number, because the mean of its divisors is an integer number (110717005610115).

Almost surely, 2^{221434011220229} is an apocalyptic number.

It is an amenable number.

221434011220229 is a deficient number, since it is larger than the sum of its proper divisors (1).

221434011220229 is an equidigital number, since it uses as much as digits as its factorization.

221434011220229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 221434011220229 in words is "two hundred twenty-one trillion, four hundred thirty-four billion, eleven million, two hundred twenty thousand, two hundred twenty-nine".