103472221 has 2 divisors, whose sum is σ = 103472222. Its totient is φ = 103472220.

The previous prime is 103472209. The next prime is 103472249. The reversal of 103472221 is 122274301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65205625 + 38266596 = 8075^2 + 6186^2 .

It is an emirp because it is prime and its reverse (122274301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103472221 - 2⁷ = 103472093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103472192 and 103472201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103472021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51736110 + 51736111.

It is an arithmetic number, because the mean of its divisors is an integer number (51736111).

Almost surely, 2^103472221 is an apocalyptic number.

It is an amenable number.

103472221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103472221 is an equidigital number, since it uses as much as digits as its factorization.

103472221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 103472221 is about 10172.1296197011. The cubic root of 103472221 is about 469.4700848145.

The spelling of 103472221 in words is "one hundred three million, four hundred seventy-two thousand, two hundred twenty-one".