103065221 has 4 divisors (see below), whose sum is σ = 117788832. Its totient is φ = 88341612.

The previous prime is 103065211. The next prime is 103065223. The reversal of 103065221 is 122560301.

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: 122560301 = 643 ⋅190607.

It is a cyclic number.

It is not a de Polignac number, because 103065221 - 2²⁶ = 35956357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103065193 and 103065202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103065223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7361795 + ... + 7361808.

It is an arithmetic number, because the mean of its divisors is an integer number (29447208).

Almost surely, 2^103065221 is an apocalyptic number.

It is an amenable number.

103065221 is a deficient number, since it is larger than the sum of its proper divisors (14723611).

103065221 is an equidigital number, since it uses as much as digits as its factorization.

103065221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14723610.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 103065221 is about 10152.1042646340. The cubic root of 103065221 is about 468.8537345292.

The spelling of 103065221 in words is "one hundred three million, sixty-five thousand, two hundred twenty-one".