11021138 has 16 divisors (see below), whose sum is σ = 16969176. Its totient is φ = 5366400.

The previous prime is 11021123. The next prime is 11021147. The reversal of 11021138 is 83112011.

It can be written as a sum of positive squares in 4 ways, for example, as 10778089 + 243049 = 3283^2 + 493^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18038 + ... + 18638.

Almost surely, 2^11021138 is an apocalyptic number.

11021138 is a deficient number, since it is larger than the sum of its proper divisors (5948038).

11021138 is a wasteful number, since it uses less digits than its factorization.

11021138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 11021138 is about 3319.8099343185. The cubic root of 11021138 is about 222.5403739385.

Adding to 11021138 its reverse (83112011), we get a palindrome (94133149).

The spelling of 11021138 in words is "eleven million, twenty-one thousand, one hundred thirty-eight".