21222211200211 has 8 divisors (see below), whose sum is σ = 24368903316224. Its totient is φ = 18104255998920.

The previous prime is 21222211200181. The next prime is 21222211200277. The reversal of 21222211200211 is 11200211222212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21222211200211 - 2⁹ = 21222211199699 is a prime.

It is a super-2 number, since 2×21222211200211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222211200611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7184227095 + ... + 7184230048.

It is an arithmetic number, because the mean of its divisors is an integer number (3046112914528).

Almost surely, 2^{21222211200211} is an apocalyptic number.

21222211200211 is a deficient number, since it is larger than the sum of its proper divisors (3146692116013).

21222211200211 is a wasteful number, since it uses less digits than its factorization.

21222211200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14368457361.

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

Adding to 21222211200211 its reverse (11200211222212), we get a palindrome (32422422422423).

The spelling of 21222211200211 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred eleven million, two hundred thousand, two hundred eleven".