211222111211022 has 32 divisors (see below), whose sum is σ = 433928912580000. Its totient is φ = 68493845541888.

The previous prime is 211222111211017. The next prime is 211222111211039. The reversal of 211222111211022 is 220112111222112.

It is a super-2 number, since 2×211222111211022² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211222111211022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72335647 + ... + 75199002.

It is an arithmetic number, because the mean of its divisors is an integer number (13560278518125).

Almost surely, 2^{211222111211022} is an apocalyptic number.

211222111211022 is an abundant number, since it is smaller than the sum of its proper divisors (222706801368978).

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

211222111211022 is a wasteful number, since it uses less digits than its factorization.

211222111211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147541140.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211222111211022 its reverse (220112111222112), we get a palindrome (431334222433134).

The spelling of 211222111211022 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred eleven million, two hundred eleven thousand, twenty-two".