22001222222011 has 4 divisors (see below), whose sum is σ = 22004388328000. Its totient is φ = 21998056116024.

The previous prime is 22001222222009. The next prime is 22001222222053. The reversal of 22001222222011 is 11022222210022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22001222222011 - 2¹ = 22001222222009 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 22001222222011.

It is not an unprimeable number, because it can be changed into a prime (22001222222411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583042571 + ... + 1583056468.

It is an arithmetic number, because the mean of its divisors is an integer number (5501097082000).

Almost surely, 2^{22001222222011} is an apocalyptic number.

22001222222011 is a deficient number, since it is larger than the sum of its proper divisors (3166105989).

22001222222011 is an equidigital number, since it uses as much as digits as its factorization.

22001222222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166105988.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22001222222011 its reverse (11022222210022), we get a palindrome (33023444432033).

The spelling of 22001222222011 in words is "twenty-two trillion, one billion, two hundred twenty-two million, two hundred twenty-two thousand, eleven".