11011222201211 has 16 divisors (see below), whose sum is σ = 11636271129600. Its totient is φ = 10398384604608.

The previous prime is 11011222201201. The next prime is 11011222201223. The reversal of 11011222201211 is 11210222211011.

It is a cyclic number.

It is not a de Polignac number, because 11011222201211 - 2³⁴ = 10994042332027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11011222201211.

It is not an unprimeable number, because it can be changed into a prime (11011222201201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25238060 + ... + 25670646.

It is an arithmetic number, because the mean of its divisors is an integer number (727266945600).

Almost surely, 2^{11011222201211} is an apocalyptic number.

11011222201211 is a deficient number, since it is larger than the sum of its proper divisors (625048928389).

11011222201211 is a wasteful number, since it uses less digits than its factorization.

11011222201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446698.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11011222201211 its reverse (11210222211011), we get a palindrome (22221444412222).

It can be divided in two parts, 11011 and 222201211, that added together give a palindrome (222212222).

The spelling of 11011222201211 in words is "eleven trillion, eleven billion, two hundred twenty-two million, two hundred one thousand, two hundred eleven".