11220220221001 has 8 divisors (see below), whose sum is σ = 12240492872544. Its totient is φ = 10199989674720.

The previous prime is 11220220220981. The next prime is 11220220221019. The reversal of 11220220221001 is 10012202202211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11220220221001 - 2⁵ = 11220220220969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220220221601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9967836 + ... + 11036221.

It is an arithmetic number, because the mean of its divisors is an integer number (1530061609068).

Almost surely, 2^{11220220221001} is an apocalyptic number.

11220220221001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11220220221001 is a deficient number, since it is larger than the sum of its proper divisors (1020272651543).

11220220221001 is a wasteful number, since it uses less digits than its factorization.

11220220221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21052631.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11220220221001 its reverse (10012202202211), we get a palindrome (21232422423212).

The spelling of 11220220221001 in words is "eleven trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, one".