11066921 has 2 divisors, whose sum is σ = 11066922. Its totient is φ = 11066920.

The previous prime is 11066917. The next prime is 11066947. The reversal of 11066921 is 12966011.

11066921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (11066947) can be obtained adding 11066921 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11022400 + 44521 = 3320^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 11066921 - 2² = 11066917 is a prime.

It is not a weakly prime, because it can be changed into another prime (11066021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5533460 + 5533461.

It is an arithmetic number, because the mean of its divisors is an integer number (5533461).

Almost surely, 2^11066921 is an apocalyptic number.

It is an amenable number.

11066921 is a deficient number, since it is larger than the sum of its proper divisors (1).

11066921 is an equidigital number, since it uses as much as digits as its factorization.

11066921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 11066921 is about 3326.6982129433. The cubic root of 11066921 is about 222.8481004870.

The spelling of 11066921 in words is "eleven million, sixty-six thousand, nine hundred twenty-one".