210211110222222 has 32 divisors (see below), whose sum is σ = 427554595699200. Its totient is φ = 68881677392448.

The previous prime is 210211110222221. The next prime is 210211110222271. The reversal of 210211110222222 is 222222011112012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211110222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18652779 + ... + 27719097.

It is an arithmetic number, because the mean of its divisors is an integer number (13361081115600).

Almost surely, 2^{210211110222222} is an apocalyptic number.

210211110222222 is an abundant number, since it is smaller than the sum of its proper divisors (217343485476978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210211110222222 is a wasteful number, since it uses less digits than its factorization.

210211110222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9131880.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 210211110222222 its reverse (222222011112012), we get a palindrome (432433121334234).

The spelling of 210211110222222 in words is "two hundred ten trillion, two hundred eleven billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty-two".