212211221110211 has 64 divisors (see below), whose sum is σ = 231865002420480. Its totient is φ = 193485658521600.

The previous prime is 212211221110169. The next prime is 212211221110253. The reversal of 212211221110211 is 112011122112212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212211221110169) and next prime (212211221110253).

It is not a de Polignac number, because 212211221110211 - 2¹⁰ = 212211221109187 is a prime.

It is a super-3 number, since 3×212211221110211³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (212211221110261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32265652955 + ... + 32265659531.

It is an arithmetic number, because the mean of its divisors is an integer number (3622890662820).

Almost surely, 2^{212211221110211} is an apocalyptic number.

212211221110211 is a deficient number, since it is larger than the sum of its proper divisors (19653781310269).

212211221110211 is a wasteful number, since it uses less digits than its factorization.

212211221110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8784.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 212211221110211 its reverse (112011122112212), we get a palindrome (324222343222423).

The spelling of 212211221110211 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-one million, one hundred ten thousand, two hundred eleven".