11011211005 has 32 divisors (see below), whose sum is σ = 13965696000. Its totient is φ = 8323046400.

The previous prime is 11011210963. The next prime is 11011211021. The reversal of 11011211005 is 50011211011.

It is not a de Polignac number, because 11011211005 - 2²⁷ = 10876993277 is a prime.

It is a super-2 number, since 2×11011211005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1358565 + ... + 1366645.

It is an arithmetic number, because the mean of its divisors is an integer number (436428000).

Almost surely, 2^11011211005 is an apocalyptic number.

It is an amenable number.

11011211005 is a deficient number, since it is larger than the sum of its proper divisors (2954484995).

11011211005 is a wasteful number, since it uses less digits than its factorization.

11011211005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325.

The product of its (nonzero) digits is 10, while the sum is 13.

Adding to 11011211005 its reverse (50011211011), we get a palindrome (61022422016).

The spelling of 11011211005 in words is "eleven billion, eleven million, two hundred eleven thousand, five".