11020100121211 has 4 divisors (see below), whose sum is σ = 11152872411912. Its totient is φ = 10887327830512.

The previous prime is 11020100121167. The next prime is 11020100121223. The reversal of 11020100121211 is 11212100102011.

It is a happy number.

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

It is not a de Polignac number, because 11020100121211 - 2⁷ = 11020100121083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020100121191 and 11020100121200.

It is not an unprimeable number, because it can be changed into a prime (11020100121271) 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, 66386145226 + ... + 66386145391.

It is an arithmetic number, because the mean of its divisors is an integer number (2788218102978).

Almost surely, 2^{11020100121211} is an apocalyptic number.

11020100121211 is a deficient number, since it is larger than the sum of its proper divisors (132772290701).

11020100121211 is an equidigital number, since it uses as much as digits as its factorization.

11020100121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132772290700.

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

Adding to 11020100121211 its reverse (11212100102011), we get a palindrome (22232200223222).

The spelling of 11020100121211 in words is "eleven trillion, twenty billion, one hundred million, one hundred twenty-one thousand, two hundred eleven".