11011221220201 has 32 divisors (see below), whose sum is σ = 11326747029120. Its totient is φ = 10700545250304.

The previous prime is 11011221220193. The next prime is 11011221220229. The reversal of 11011221220201 is 10202212211011.

It is a cyclic number.

It is not a de Polignac number, because 11011221220201 - 2³ = 11011221220193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011221220301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6390725326 + ... + 6390727048.

It is an arithmetic number, because the mean of its divisors is an integer number (353960844660).

Almost surely, 2^{11011221220201} is an apocalyptic number.

It is an amenable number.

11011221220201 is a deficient number, since it is larger than the sum of its proper divisors (315525808919).

11011221220201 is a wasteful number, since it uses less digits than its factorization.

11011221220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11011221220201 its reverse (10202212211011), we get a palindrome (21213433431212).

The spelling of 11011221220201 in words is "eleven trillion, eleven billion, two hundred twenty-one million, two hundred twenty thousand, two hundred one".