211222111020211 has 32 divisors (see below), whose sum is σ = 227128711219200. Its totient is φ = 195935407134720.

The previous prime is 211222111020163. The next prime is 211222111020251. The reversal of 211222111020211 is 112020111222112.

It is a happy number.

211222111020211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211222111020211 - 2²⁵ = 211222077465779 is a prime.

It is a super-2 number, since 2×211222111020211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211222111020251) 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, 448258150 + ... + 448729108.

It is an arithmetic number, because the mean of its divisors is an integer number (7097772225600).

Almost surely, 2^{211222111020211} is an apocalyptic number.

211222111020211 is a deficient number, since it is larger than the sum of its proper divisors (15906600198989).

211222111020211 is a wasteful number, since it uses less digits than its factorization.

211222111020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473859.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211222111020211 its reverse (112020111222112), we get a palindrome (323242222242323).

The spelling of 211222111020211 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred eleven million, twenty thousand, two hundred eleven".