219660223 has 2 divisors, whose sum is σ = 219660224. Its totient is φ = 219660222.

The previous prime is 219660151. The next prime is 219660227. The reversal of 219660223 is 322066912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 219660223 - 2²⁵ = 186105791 is a prime.

It is a super-2 number, since 2×219660223² = 96501227136819458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219660227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109830111 + 109830112.

It is an arithmetic number, because the mean of its divisors is an integer number (109830112).

Almost surely, 2^219660223 is an apocalyptic number.

219660223 is a deficient number, since it is larger than the sum of its proper divisors (1).

219660223 is an equidigital number, since it uses as much as digits as its factorization.

219660223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 219660223 is about 14820.9386679792. The cubic root of 219660223 is about 603.3701302981.

The spelling of 219660223 in words is "two hundred nineteen million, six hundred sixty thousand, two hundred twenty-three".