211222012211 has 16 divisors (see below), whose sum is σ = 244503318528. Its totient is φ = 178730160000.

The previous prime is 211222012201. The next prime is 211222012241. The reversal of 211222012211 is 112210222112.

It is not a de Polignac number, because 211222012211 - 2¹⁴ = 211221995827 is a prime.

It is a super-3 number, since 3×211222012211³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 211222012211.

It is not an unprimeable number, because it can be changed into a prime (211222012201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333395 + ... + 730476.

It is an arithmetic number, because the mean of its divisors is an integer number (15281457408).

Almost surely, 2^211222012211 is an apocalyptic number.

211222012211 is a deficient number, since it is larger than the sum of its proper divisors (33281306317).

211222012211 is a wasteful number, since it uses less digits than its factorization.

211222012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064242.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211222012211 its reverse (112210222112), we get a palindrome (323432234323).

The spelling of 211222012211 in words is "two hundred eleven billion, two hundred twenty-two million, twelve thousand, two hundred eleven".