10221579 has 16 divisors (see below), whose sum is σ = 15200640. Its totient is φ = 6788520.

The previous prime is 10221571. The next prime is 10221619. The reversal of 10221579 is 97512201.

It is not a de Polignac number, because 10221579 - 2³ = 10221571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10221571) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8824 + ... + 9914.

It is an arithmetic number, because the mean of its divisors is an integer number (950040).

Almost surely, 2^10221579 is an apocalyptic number.

10221579 is a deficient number, since it is larger than the sum of its proper divisors (4979061).

10221579 is a wasteful number, since it uses less digits than its factorization.

10221579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 10221579 is about 3197.1204231308. The cubic root of 10221579 is about 217.0231168787.

It can be divided in two parts, 1022 and 1579, that added together give a square (2601 = 51²).

The spelling of 10221579 in words is "ten million, two hundred twenty-one thousand, five hundred seventy-nine".