211221222210222 has 32 divisors (see below), whose sum is σ = 482909725670400. Its totient is φ = 60334125554208.

The previous prime is 211221222210169. The next prime is 211221222210263. The reversal of 211221222210222 is 222012222122112.

It is a happy number.

211221222210222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211221222210222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211221222210192 and 211221222210201.

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, 616288197 + ... + 616630832.

It is an arithmetic number, because the mean of its divisors is an integer number (15090928927200).

Almost surely, 2^{211221222210222} is an apocalyptic number.

211221222210222 is an abundant number, since it is smaller than the sum of its proper divisors (271688503460178).

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

211221222210222 is a wasteful number, since it uses less digits than its factorization.

211221222210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232923120.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 211221222210222 its reverse (222012222122112), we get a palindrome (433233444332334).

The spelling of 211221222210222 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred ten thousand, two hundred twenty-two".