11021147 has 2 divisors, whose sum is σ = 11021148. Its totient is φ = 11021146.

The previous prime is 11021123. The next prime is 11021167. The reversal of 11021147 is 74112011.

11021147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11021147 - 2¹² = 11017051 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11021167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510573 + 5510574.

It is an arithmetic number, because the mean of its divisors is an integer number (5510574).

Almost surely, 2^11021147 is an apocalyptic number.

11021147 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021147 is an equidigital number, since it uses as much as digits as its factorization.

11021147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 11021147 is about 3319.8112898175. The cubic root of 11021147 is about 222.5404345149.

Adding to 11021147 its reverse (74112011), we get a palindrome (85133158).

The spelling of 11021147 in words is "eleven million, twenty-one thousand, one hundred forty-seven".