11011122212201 has 4 divisors (see below), whose sum is σ = 11011132685712. Its totient is φ = 11011111738692.

The previous prime is 11011122212099. The next prime is 11011122212203. The reversal of 11011122212201 is 10221222111011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11011122212201 - 2²² = 11011118017897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11011122212201.

It is not an unprimeable number, because it can be changed into a prime (11011122212203) 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, 3458471 + ... + 5829516.

It is an arithmetic number, because the mean of its divisors is an integer number (2752783171428).

Almost surely, 2^{11011122212201} is an apocalyptic number.

It is an amenable number.

11011122212201 is a deficient number, since it is larger than the sum of its proper divisors (10473511).

11011122212201 is an equidigital number, since it uses as much as digits as its factorization.

11011122212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10473510.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11011122212201 its reverse (10221222111011), we get a palindrome (21232344323212).

The spelling of 11011122212201 in words is "eleven trillion, eleven billion, one hundred twenty-two million, two hundred twelve thousand, two hundred one".