11112200121205 has 4 divisors (see below), whose sum is σ = 13334640145452. Its totient is φ = 8889760096960.

The previous prime is 11112200121199. The next prime is 11112200121233. The reversal of 11112200121205 is 50212100221111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6033856744881 + 5078343376324 = 2456391^2 + 2253518^2 .

It is not a de Polignac number, because 11112200121205 - 2¹¹ = 11112200119157 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, 1111220012116 + ... + 1111220012125.

It is an arithmetic number, because the mean of its divisors is an integer number (3333660036363).

Almost surely, 2^{11112200121205} is an apocalyptic number.

It is an amenable number.

11112200121205 is a deficient number, since it is larger than the sum of its proper divisors (2222440024247).

11112200121205 is an equidigital number, since it uses as much as digits as its factorization.

11112200121205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222440024246.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 11112200121205 its reverse (50212100221111), we get a palindrome (61324300342316).

The spelling of 11112200121205 in words is "eleven trillion, one hundred twelve billion, two hundred million, one hundred twenty-one thousand, two hundred five".