10979221 has 4 divisors (see below), whose sum is σ = 11977344. Its totient is φ = 9981100.

The previous prime is 10979219. The next prime is 10979231. The reversal of 10979221 is 12297901.

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.

It is a cyclic number.

It is not a de Polignac number, because 10979221 - 2¹ = 10979219 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10979231) 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 3 ways as a sum of consecutive naturals, for example, 499045 + ... + 499066.

It is an arithmetic number, because the mean of its divisors is an integer number (2994336).

Almost surely, 2^10979221 is an apocalyptic number.

10979221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10979221 is a deficient number, since it is larger than the sum of its proper divisors (998123).

10979221 is an equidigital number, since it uses as much as digits as its factorization.

10979221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998122.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 10979221 is about 3313.4907574943. The cubic root of 10979221 is about 222.2578841749.

The spelling of 10979221 in words is "ten million, nine hundred seventy-nine thousand, two hundred twenty-one".