221483852273 has 2 divisors, whose sum is σ = 221483852274. Its totient is φ = 221483852272.

The previous prime is 221483852263. The next prime is 221483852327. The reversal of 221483852273 is 372258384122.

Together with next prime (221483852327) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153783975409 + 67699876864 = 392153^2 + 260192^2 .

It is a cyclic number.

It is not a de Polignac number, because 221483852273 - 2¹⁸ = 221483590129 is a prime.

It is not a weakly prime, because it can be changed into another prime (221483852263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110741926136 + 110741926137.

It is an arithmetic number, because the mean of its divisors is an integer number (110741926137).

Almost surely, 2^221483852273 is an apocalyptic number.

It is an amenable number.

221483852273 is a deficient number, since it is larger than the sum of its proper divisors (1).

221483852273 is an equidigital number, since it uses as much as digits as its factorization.

221483852273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 47.

The spelling of 221483852273 in words is "two hundred twenty-one billion, four hundred eighty-three million, eight hundred fifty-two thousand, two hundred seventy-three".