10221635 has 8 divisors (see below), whose sum is σ = 12328800. Its totient is φ = 8135424.

The previous prime is 10221623. The next prime is 10221647. The reversal of 10221635 is 53612201.

It is an interprime number because it is at equal distance from previous prime (10221623) and next prime (10221647).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10221635 - 2⁴ = 10221619 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4142 + ... + 6131.

It is an arithmetic number, because the mean of its divisors is an integer number (1541100).

Almost surely, 2^10221635 is an apocalyptic number.

10221635 is a deficient number, since it is larger than the sum of its proper divisors (2107165).

10221635 is a wasteful number, since it uses less digits than its factorization.

10221635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10477.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 10221635 is about 3197.1291809997. The cubic root of 10221635 is about 217.0235132060.

Adding to 10221635 its reverse (53612201), we get a palindrome (63833836).

The spelling of 10221635 in words is "ten million, two hundred twenty-one thousand, six hundred thirty-five".