221925496433 has 2 divisors, whose sum is σ = 221925496434. Its totient is φ = 221925496432.

The previous prime is 221925496427. The next prime is 221925496459. The reversal of 221925496433 is 334694529122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176961566224 + 44963930209 = 420668^2 + 212047^2 .

It is a cyclic number.

It is not a de Polignac number, because 221925496433 - 2¹² = 221925492337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (221925496033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110962748216 + 110962748217.

It is an arithmetic number, because the mean of its divisors is an integer number (110962748217).

Almost surely, 2^221925496433 is an apocalyptic number.

It is an amenable number.

221925496433 is a deficient number, since it is larger than the sum of its proper divisors (1).

221925496433 is an equidigital number, since it uses as much as digits as its factorization.

221925496433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 50.

The spelling of 221925496433 in words is "two hundred twenty-one billion, nine hundred twenty-five million, four hundred ninety-six thousand, four hundred thirty-three".