21222202010211 has 12 divisors (see below), whose sum is σ = 31482786165792. Its totient is φ = 13765752655056.

The previous prime is 21222202010197. The next prime is 21222202010239. The reversal of 21222202010211 is 11201020222212.

It is a happy number.

21222202010211 is a `hidden beast` number, since 21 + 222 + 202 + 0 + 10 + 211 = 666.

It is not a de Polignac number, because 21222202010211 - 2⁵ = 21222202010179 is a prime.

It is a super-3 number, since 3×21222202010211³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21222202010411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31865167851 + ... + 31865168516.

It is an arithmetic number, because the mean of its divisors is an integer number (2623565513816).

Almost surely, 2^{21222202010211} is an apocalyptic number.

21222202010211 is a deficient number, since it is larger than the sum of its proper divisors (10260584155581).

21222202010211 is a wasteful number, since it uses less digits than its factorization.

21222202010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63730336410 (or 63730336407 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 21222202010211 its reverse (11201020222212), we get a palindrome (32423222232423).

The spelling of 21222202010211 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred two million, ten thousand, two hundred eleven".