11012022011 has 4 divisors (see below), whose sum is σ = 11192547024. Its totient is φ = 10831497000.

The previous prime is 11012021989. The next prime is 11012022031. The reversal of 11012022011 is 11022021011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11022021011 = 19 ⋅580106369.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11012022011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012021983 and 11012022001.

It is not an unprimeable number, because it can be changed into a prime (11012022031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90262415 + ... + 90262536.

It is an arithmetic number, because the mean of its divisors is an integer number (2798136756).

Almost surely, 2^11012022011 is an apocalyptic number.

11012022011 is a deficient number, since it is larger than the sum of its proper divisors (180525013).

11012022011 is an equidigital number, since it uses as much as digits as its factorization.

11012022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180525012.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11012022011 its reverse (11022021011), we get a palindrome (22034043022).

The spelling of 11012022011 in words is "eleven billion, twelve million, twenty-two thousand, eleven".