11101122205 has 4 divisors (see below), whose sum is σ = 13321346652. Its totient is φ = 8880897760.

The previous prime is 11101122199. The next prime is 11101122211. The reversal of 11101122205 is 50222110111.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11101122199) and next prime (11101122211).

It can be written as a sum of positive squares in 2 ways, for example, as 1344028921 + 9757093284 = 36661^2 + 98778^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11101122205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110112216 + ... + 1110112225.

It is an arithmetic number, because the mean of its divisors is an integer number (3330336663).

Almost surely, 2^11101122205 is an apocalyptic number.

It is an amenable number.

11101122205 is a deficient number, since it is larger than the sum of its proper divisors (2220224447).

11101122205 is an equidigital number, since it uses as much as digits as its factorization.

11101122205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220224446.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 11101122205 its reverse (50222110111), we get a palindrome (61323232316).

The spelling of 11101122205 in words is "eleven billion, one hundred one million, one hundred twenty-two thousand, two hundred five".