11011221111005 has 8 divisors (see below), whose sum is σ = 13216667069952. Its totient is φ = 8806842397648.

The previous prime is 11011221110987. The next prime is 11011221111041. The reversal of 11011221111005 is 50011112211011.

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

It is a cyclic number.

It is not a de Polignac number, because 11011221111005 - 2⁶ = 11011221110941 is a prime.

It is a super-2 number, since 2×11011221111005² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266788697 + ... + 266829966.

It is an arithmetic number, because the mean of its divisors is an integer number (1652083383744).

Almost surely, 2^{11011221111005} is an apocalyptic number.

It is an amenable number.

11011221111005 is a deficient number, since it is larger than the sum of its proper divisors (2205445958947).

11011221111005 is an equidigital number, since it uses as much as digits as its factorization.

11011221111005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533622795.

The product of its (nonzero) digits is 20, while the sum is 17.

Adding to 11011221111005 its reverse (50011112211011), we get a palindrome (61022333322016).

The spelling of 11011221111005 in words is "eleven trillion, eleven billion, two hundred twenty-one million, one hundred eleven thousand, five".