22100212012211 has 4 divisors (see below), whose sum is σ = 22100222723400. Its totient is φ = 22100201301024.

The previous prime is 22100212012199. The next prime is 22100212012231. The reversal of 22100212012211 is 11221021200122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22100212012211 - 2⁴² = 17702165501107 is a prime.

It is a super-2 number, since 2×22100212012211² (a number of 27 digits) contains 22 as substring.

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 22100212012211.

It is not an unprimeable number, because it can be changed into a prime (22100212012231) 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, 1170566 + ... + 6750603.

It is an arithmetic number, because the mean of its divisors is an integer number (5525055680850).

Almost surely, 2^{22100212012211} is an apocalyptic number.

22100212012211 is a deficient number, since it is larger than the sum of its proper divisors (10711189).

22100212012211 is an equidigital number, since it uses as much as digits as its factorization.

22100212012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10711188.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22100212012211 its reverse (11221021200122), we get a palindrome (33321233212333).

The spelling of 22100212012211 in words is "twenty-two trillion, one hundred billion, two hundred twelve million, twelve thousand, two hundred eleven".