22011112201 has 16 divisors (see below), whose sum is σ = 24594570000. Its totient is φ = 19559006208.

The previous prime is 22011112199. The next prime is 22011112237. The reversal of 22011112201 is 10221111022.

It can be written as a sum of positive squares in 8 ways, for example, as 3686400 + 22007425801 = 1920^2 + 148349^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011112201 - 2¹ = 22011112199 is a prime.

It is a super-2 number, since 2×22011112201² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (22011112271) 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, 40425 + ... + 213673.

It is an arithmetic number, because the mean of its divisors is an integer number (1537160625).

Almost surely, 2^22011112201 is an apocalyptic number.

It is an amenable number.

22011112201 is a deficient number, since it is larger than the sum of its proper divisors (2583457799).

22011112201 is a wasteful number, since it uses less digits than its factorization.

22011112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173628.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22011112201 its reverse (10221111022), we get a palindrome (32232223223).

The spelling of 22011112201 in words is "twenty-two billion, eleven million, one hundred twelve thousand, two hundred one".