11001200121211 has 4 divisors (see below), whose sum is σ = 11102128562800. Its totient is φ = 10900271679624.

The previous prime is 11001200121161. The next prime is 11001200121239. The reversal of 11001200121211 is 11212100210011.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11001200121211 - 2¹⁵ = 11001200088443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001200121191 and 11001200121200.

It is not an unprimeable number, because it can be changed into a prime (11001200121511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50464220631 + ... + 50464220848.

It is an arithmetic number, because the mean of its divisors is an integer number (2775532140700).

Almost surely, 2^{11001200121211} is an apocalyptic number.

11001200121211 is a deficient number, since it is larger than the sum of its proper divisors (100928441589).

11001200121211 is a wasteful number, since it uses less digits than its factorization.

11001200121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100928441588.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11001200121211 its reverse (11212100210011), we get a palindrome (22213300331222).

The spelling of 11001200121211 in words is "eleven trillion, one billion, two hundred million, one hundred twenty-one thousand, two hundred eleven".