21222200112211 has 24 divisors (see below), whose sum is σ = 26327280616560. Its totient is φ = 16997261686272.

The previous prime is 21222200112193. The next prime is 21222200112271. The reversal of 21222200112211 is 11221100222212.

It is not a de Polignac number, because 21222200112211 - 2⁷ = 21222200112083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21222200112271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91527490 + ... + 91759063.

It is an arithmetic number, because the mean of its divisors is an integer number (1096970025690).

Almost surely, 2^{21222200112211} is an apocalyptic number.

21222200112211 is a deficient number, since it is larger than the sum of its proper divisors (5105080504349).

21222200112211 is a wasteful number, since it uses less digits than its factorization.

21222200112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183286723 (or 183286716 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21222200112211 its reverse (11221100222212), we get a palindrome (32443300334423).

The spelling of 21222200112211 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred million, one hundred twelve thousand, two hundred eleven".