10221443 has 2 divisors, whose sum is σ = 10221444. Its totient is φ = 10221442.

The previous prime is 10221397. The next prime is 10221457. The reversal of 10221443 is 34412201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10221443 - 2⁸ = 10221187 is a prime.

It is not a weakly prime, because it can be changed into another prime (10226443) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110721 + 5110722.

It is an arithmetic number, because the mean of its divisors is an integer number (5110722).

Almost surely, 2^10221443 is an apocalyptic number.

10221443 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221443 is an equidigital number, since it uses as much as digits as its factorization.

10221443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 10221443 is about 3197.0991539206. The cubic root of 10221443 is about 217.0221543635.

Adding to 10221443 its reverse (34412201), we get a palindrome (44633644).

It can be divided in two parts, 102 and 21443, that multiplied together give a triangular number (2187186 = T₂₀₉₁).

The spelling of 10221443 in words is "ten million, two hundred twenty-one thousand, four hundred forty-three".