21222000200211 has 32 divisors (see below), whose sum is σ = 29102070497280. Its totient is φ = 13748377860000.

The previous prime is 21222000200207. The next prime is 21222000200213. The reversal of 21222000200211 is 11200200022212.

It is not a de Polignac number, because 21222000200211 - 2² = 21222000200207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21222000200213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73865086 + ... + 74151836.

It is an arithmetic number, because the mean of its divisors is an integer number (909439703040).

Almost surely, 2^{21222000200211} is an apocalyptic number.

21222000200211 is a deficient number, since it is larger than the sum of its proper divisors (7880070297069).

21222000200211 is a wasteful number, since it uses less digits than its factorization.

21222000200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289727.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21222000200211 its reverse (11200200022212), we get a palindrome (32422200222423).

The spelling of 21222000200211 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thousand, two hundred eleven".