11201222211 has 8 divisors (see below), whose sum is σ = 14940490944. Its totient is φ = 7464717480.

The previous prime is 11201222183. The next prime is 11201222243. The reversal of 11201222211 is 11222210211.

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

It is not a de Polignac number, because 11201222211 - 2⁷ = 11201222083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11201222261) 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, 681525 + ... + 697766.

It is an arithmetic number, because the mean of its divisors is an integer number (1867561368).

Almost surely, 2^11201222211 is an apocalyptic number.

11201222211 is a deficient number, since it is larger than the sum of its proper divisors (3739268733).

11201222211 is a wasteful number, since it uses less digits than its factorization.

11201222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382001.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11201222211 its reverse (11222210211), we get a palindrome (22423432422).

The spelling of 11201222211 in words is "eleven billion, two hundred one million, two hundred twenty-two thousand, two hundred eleven".