21222202020211 has 8 divisors (see below), whose sum is σ = 21583124640224. Its totient is φ = 20861699325120.

The previous prime is 21222202020139. The next prime is 21222202020289. The reversal of 21222202020211 is 11202020222212.

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

It is a cyclic number.

It is not a de Polignac number, because 21222202020211 - 2⁹ = 21222202019699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222202020511) 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, 104879295 + ... + 105081448.

It is an arithmetic number, because the mean of its divisors is an integer number (2697890580028).

Almost surely, 2^{21222202020211} is an apocalyptic number.

21222202020211 is a deficient number, since it is larger than the sum of its proper divisors (360922620013).

21222202020211 is a wasteful number, since it uses less digits than its factorization.

21222202020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209962461.

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

Adding to 21222202020211 its reverse (11202020222212), we get a palindrome (32424222242423).

The spelling of 21222202020211 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred two million, twenty thousand, two hundred eleven".