11220220211201 has 4 divisors (see below), whose sum is σ = 11221558030512. Its totient is φ = 11218882391892.

The previous prime is 11220220211197. The next prime is 11220220211219. The reversal of 11220220211201 is 10211202202211.

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.

It is a cyclic number.

It is not a de Polignac number, because 11220220211201 - 2² = 11220220211197 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 11220220211201.

It is not an unprimeable number, because it can be changed into a prime (11220228211201) 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, 668897075 + ... + 668913848.

It is an arithmetic number, because the mean of its divisors is an integer number (2805389507628).

Almost surely, 2^{11220220211201} is an apocalyptic number.

It is an amenable number.

11220220211201 is a deficient number, since it is larger than the sum of its proper divisors (1337819311).

11220220211201 is an equidigital number, since it uses as much as digits as its factorization.

11220220211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337819310.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11220220211201 its reverse (10211202202211), we get a palindrome (21431422413412).

The spelling of 11220220211201 in words is "eleven trillion, two hundred twenty billion, two hundred twenty million, two hundred eleven thousand, two hundred one".