10221277 has 4 divisors (see below), whose sum is σ = 11150496. Its totient is φ = 9292060.

The previous prime is 10221247. The next prime is 10221283. The reversal of 10221277 is 77212201.

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: 77212201 = 11 ⋅7019291.

It is a cyclic number.

It is not a de Polignac number, because 10221277 - 2⁷ = 10221149 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 (10221247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464593 + ... + 464614.

It is an arithmetic number, because the mean of its divisors is an integer number (2787624).

Almost surely, 2^10221277 is an apocalyptic number.

It is an amenable number.

10221277 is a deficient number, since it is larger than the sum of its proper divisors (929219).

10221277 is an equidigital number, since it uses as much as digits as its factorization.

10221277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929218.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 10221277 is about 3197.0731927812. The cubic root of 10221277 is about 217.0209795172.

Adding to 10221277 its reverse (77212201), we get a palindrome (87433478).

The spelling of 10221277 in words is "ten million, two hundred twenty-one thousand, two hundred seventy-seven".