11207021 has 8 divisors (see below), whose sum is σ = 13249920. Its totient is φ = 9274608.

The previous prime is 11206997. The next prime is 11207039. The reversal of 11207021 is 12070211.

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

It is not a de Polignac number, because 11207021 - 2¹⁴ = 11190637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11206987 and 11207005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11207051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27401 + ... + 27806.

It is an arithmetic number, because the mean of its divisors is an integer number (1656240).

Almost surely, 2^11207021 is an apocalyptic number.

It is an amenable number.

11207021 is a deficient number, since it is larger than the sum of its proper divisors (2042899).

11207021 is an equidigital number, since it uses as much as digits as its factorization.

11207021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55243.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 11207021 is about 3347.6889043040. The cubic root of 11207021 is about 223.7845305259.

Adding to 11207021 its reverse (12070211), we get a palindrome (23277232).

The spelling of 11207021 in words is "eleven million, two hundred seven thousand, twenty-one".