11201000221001 has 4 divisors (see below), whose sum is σ = 11211304730112. Its totient is φ = 11190695711892.

The previous prime is 11201000220931. The next prime is 11201000221009. The reversal of 11201000221001 is 10012200010211.

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 a de Polignac number, because none of the positive numbers 2^k-11201000221001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201000221009) 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, 5152252925 + ... + 5152255098.

It is an arithmetic number, because the mean of its divisors is an integer number (2802826182528).

Almost surely, 2^{11201000221001} is an apocalyptic number.

It is an amenable number.

11201000221001 is a deficient number, since it is larger than the sum of its proper divisors (10304509111).

11201000221001 is a wasteful number, since it uses less digits than its factorization.

11201000221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10304509110.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11201000221001 its reverse (10012200010211), we get a palindrome (21213200231212).

The spelling of 11201000221001 in words is "eleven trillion, two hundred one billion, two hundred twenty-one thousand, one".