103202221 has 4 divisors (see below), whose sum is σ = 103308192. Its totient is φ = 103096252.

The previous prime is 103202161. The next prime is 103202233. The reversal of 103202221 is 122202301.

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.

It is a cyclic number.

It is not a de Polignac number, because 103202221 - 2⁷ = 103202093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103202521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51511 + ... + 53476.

It is an arithmetic number, because the mean of its divisors is an integer number (25827048).

Almost surely, 2^103202221 is an apocalyptic number.

It is an amenable number.

103202221 is a deficient number, since it is larger than the sum of its proper divisors (105971).

103202221 is an equidigital number, since it uses as much as digits as its factorization.

103202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105970.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 103202221 is about 10158.8493935091. The cubic root of 103202221 is about 469.0613846668.

Adding to 103202221 its reverse (122202301), we get a palindrome (225404522).

The spelling of 103202221 in words is "one hundred three million, two hundred two thousand, two hundred twenty-one".