205212333442223 has 2 divisors, whose sum is σ = 205212333442224. Its totient is φ = 205212333442222.

The previous prime is 205212333442217. The next prime is 205212333442243. The reversal of 205212333442223 is 322244333212502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205212333442223 - 2⁴² = 200814286931119 is a prime.

It is a super-2 number, since 2×205212333442223² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205212333442243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102606166721111 + 102606166721112.

It is an arithmetic number, because the mean of its divisors is an integer number (102606166721112).

Almost surely, 2^{205212333442223} is an apocalyptic number.

205212333442223 is a deficient number, since it is larger than the sum of its proper divisors (1).

205212333442223 is an equidigital number, since it uses as much as digits as its factorization.

205212333442223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 38.

Adding to 205212333442223 its reverse (322244333212502), we get a palindrome (527456666654725).

The spelling of 205212333442223 in words is "two hundred five trillion, two hundred twelve billion, three hundred thirty-three million, four hundred forty-two thousand, two hundred twenty-three".