21222201200211 has 48 divisors (see below), whose sum is σ = 35515138808448. Its totient is φ = 12068783020800.

The previous prime is 21222201200131. The next prime is 21222201200251. The reversal of 21222201200211 is 11200210222212.

It is a happy number.

21222201200211 is a `hidden beast` number, since 21 + 222 + 201 + 200 + 21 + 1 = 666.

It is not a de Polignac number, because 21222201200211 - 2⁹ = 21222201199699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21222201200251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18490881 + ... + 19605026.

It is an arithmetic number, because the mean of its divisors is an integer number (739898725176).

Almost surely, 2^{21222201200211} is an apocalyptic number.

21222201200211 is a deficient number, since it is larger than the sum of its proper divisors (14292937608237).

21222201200211 is a wasteful number, since it uses less digits than its factorization.

21222201200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38096272 (or 38096269 counting only the distinct ones).

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

Adding to 21222201200211 its reverse (11200210222212), we get a palindrome (32422411422423).

It can be divided in two parts, 21222201 and 200211, that added together give a palindrome (21422412).

The spelling of 21222201200211 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred one million, two hundred thousand, two hundred eleven".