11011021220105 has 8 divisors (see below), whose sum is σ = 13309672366152. Its totient is φ = 8744519041408.

The previous prime is 11011021219999. The next prime is 11011021220137. The reversal of 11011021220105 is 50102212011011.

It can be written as a sum of positive squares in 4 ways, for example, as 1879619064064 + 9131402156041 = 1370992^2 + 3021821^2 .

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 11011021220105 - 2¹⁸ = 11011020957961 is a prime.

It is a super-2 number, since 2×11011021220105² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

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, 8037241082 + ... + 8037242451.

It is an arithmetic number, because the mean of its divisors is an integer number (1663709045769).

Almost surely, 2^{11011021220105} is an apocalyptic number.

It is an amenable number.

11011021220105 is a deficient number, since it is larger than the sum of its proper divisors (2298651146047).

11011021220105 is a wasteful number, since it uses less digits than its factorization.

11011021220105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16074483675.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 11011021220105 its reverse (50102212011011), we get a palindrome (61113233231116).

The spelling of 11011021220105 in words is "eleven trillion, eleven billion, twenty-one million, two hundred twenty thousand, one hundred five".