11123222201 has 32 divisors (see below), whose sum is σ = 14034988800. Its totient is φ = 8581158144.

The previous prime is 11123222197. The next prime is 11123222203. The reversal of 11123222201 is 10222232111.

It is not a de Polignac number, because 11123222201 - 2² = 11123222197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11123222201.

It is not an unprimeable number, because it can be changed into a prime (11123222203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 779075 + ... + 793223.

It is an arithmetic number, because the mean of its divisors is an integer number (438593400).

Almost surely, 2^11123222201 is an apocalyptic number.

It is an amenable number.

11123222201 is a deficient number, since it is larger than the sum of its proper divisors (2911766599).

11123222201 is a wasteful number, since it uses less digits than its factorization.

11123222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14385.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11123222201 its reverse (10222232111), we get a palindrome (21345454312).

The spelling of 11123222201 in words is "eleven billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred one".