11221210201011 has 16 divisors (see below), whose sum is σ = 15391478283264. Its totient is φ = 7268198053184.

The previous prime is 11221210201007. The next prime is 11221210201027. The reversal of 11221210201011 is 11010201212211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11221210201011 - 2² = 11221210201007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221210201081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290429775 + ... + 290468408.

It is an arithmetic number, because the mean of its divisors is an integer number (961967392704).

Almost surely, 2^{11221210201011} is an apocalyptic number.

11221210201011 is a deficient number, since it is larger than the sum of its proper divisors (4170268082253).

11221210201011 is a wasteful number, since it uses less digits than its factorization.

11221210201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580898370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11221210201011 its reverse (11010201212211), we get a palindrome (22231411413222).

The spelling of 11221210201011 in words is "eleven trillion, two hundred twenty-one billion, two hundred ten million, two hundred one thousand, eleven".