11201210220001 has 4 divisors (see below), whose sum is σ = 11201218158592. Its totient is φ = 11201202281412.

The previous prime is 11201210219999. The next prime is 11201210220007. The reversal of 11201210220001 is 10002201210211.

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 11201210220001 - 2¹ = 11201210219999 is a prime.

It is a super-2 number, since 2×11201210220001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201210220007) 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, 1216401 + ... + 4886926.

It is an arithmetic number, because the mean of its divisors is an integer number (2800304539648).

Almost surely, 2^{11201210220001} is an apocalyptic number.

It is an amenable number.

11201210220001 is a deficient number, since it is larger than the sum of its proper divisors (7938591).

11201210220001 is an equidigital number, since it uses as much as digits as its factorization.

11201210220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7938590.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11201210220001 its reverse (10002201210211), we get a palindrome (21203411430212).

The spelling of 11201210220001 in words is "eleven trillion, two hundred one billion, two hundred ten million, two hundred twenty thousand, one".