11022011121211 has 4 divisors (see below), whose sum is σ = 11027541485032. Its totient is φ = 11016480757392.

The previous prime is 11022011121169. The next prime is 11022011121227. The reversal of 11022011121211 is 11212111022011.

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 11022011121211 - 2¹⁷ = 11022010990139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11022011121811) 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, 2765178921 + ... + 2765182906.

It is an arithmetic number, because the mean of its divisors is an integer number (2756885371258).

Almost surely, 2^{11022011121211} is an apocalyptic number.

11022011121211 is a deficient number, since it is larger than the sum of its proper divisors (5530363821).

11022011121211 is an equidigital number, since it uses as much as digits as its factorization.

11022011121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530363820.

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

Adding to 11022011121211 its reverse (11212111022011), we get a palindrome (22234122143222).

The spelling of 11022011121211 in words is "eleven trillion, twenty-two billion, eleven million, one hundred twenty-one thousand, two hundred eleven".