103112221 has 4 divisors (see below), whose sum is σ = 108539200. Its totient is φ = 97685244.

The previous prime is 103112209. The next prime is 103112239. The reversal of 103112221 is 122211301.

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 103112221 - 2¹⁷ = 102981149 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 (103112521) 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, 2713461 + ... + 2713498.

It is an arithmetic number, because the mean of its divisors is an integer number (27134800).

Almost surely, 2^103112221 is an apocalyptic number.

It is an amenable number.

103112221 is a deficient number, since it is larger than the sum of its proper divisors (5426979).

103112221 is an equidigital number, since it uses as much as digits as its factorization.

103112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426978.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 103112221 is about 10154.4187918364. The cubic root of 103112221 is about 468.9249928920.

Adding to 103112221 its reverse (122211301), we get a palindrome (225323522).

The spelling of 103112221 in words is "one hundred three million, one hundred twelve thousand, two hundred twenty-one".