11222201211 has 32 divisors (see below), whose sum is σ = 17959818240. Its totient is φ = 6157638144.

The previous prime is 11222201209. The next prime is 11222201213. The reversal of 11222201211 is 11210222211.

It is an interprime number because it is at equal distance from previous prime (11222201209) and next prime (11222201213).

It is not a de Polignac number, because 11222201211 - 2¹ = 11222201209 is a prime.

It is a super-4 number, since 4×11222201211⁴ (a number of 41 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (11222201213) 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, 432835 + ... + 458028.

It is an arithmetic number, because the mean of its divisors is an integer number (561244320).

Almost surely, 2^11222201211 is an apocalyptic number.

11222201211 is a deficient number, since it is larger than the sum of its proper divisors (6737617029).

11222201211 is a wasteful number, since it uses less digits than its factorization.

11222201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890915.

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

Adding to 11222201211 its reverse (11210222211), we get a palindrome (22432423422).

The spelling of 11222201211 in words is "eleven billion, two hundred twenty-two million, two hundred one thousand, two hundred eleven".