11201212222001 has 4 divisors (see below), whose sum is σ = 11201763401712. Its totient is φ = 11200661042292.

The previous prime is 11201212221971. The next prime is 11201212222021. The reversal of 11201212222001 is 10022221210211.

11201212222001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-11201212222001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201212222021) 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, 275559371 + ... + 275600016.

It is an arithmetic number, because the mean of its divisors is an integer number (2800440850428).

Almost surely, 2^{11201212222001} is an apocalyptic number.

It is an amenable number.

11201212222001 is a deficient number, since it is larger than the sum of its proper divisors (551179711).

11201212222001 is an equidigital number, since it uses as much as digits as its factorization.

11201212222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551179710.

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

Adding to 11201212222001 its reverse (10022221210211), we get a palindrome (21223433432212).

The spelling of 11201212222001 in words is "eleven trillion, two hundred one billion, two hundred twelve million, two hundred twenty-two thousand, one".