221848801 has 4 divisors (see below), whose sum is σ = 224973504. Its totient is φ = 218724100.

The previous prime is 221848763. The next prime is 221848813. The reversal of 221848801 is 108848122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108848122 = 2 ⋅54424061.

It is a cyclic number.

It is not a de Polignac number, because 221848801 - 2¹³ = 221840609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221848001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1562245 + ... + 1562386.

It is an arithmetic number, because the mean of its divisors is an integer number (56243376).

Almost surely, 2^221848801 is an apocalyptic number.

It is an amenable number.

221848801 is a deficient number, since it is larger than the sum of its proper divisors (3124703).

221848801 is an equidigital number, since it uses as much as digits as its factorization.

221848801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124702.

The product of its (nonzero) digits is 8192, while the sum is 34.

The square root of 221848801 is about 14894.5896553077. The cubic root of 221848801 is about 605.3673983643.

The spelling of 221848801 in words is "two hundred twenty-one million, eight hundred forty-eight thousand, eight hundred one".