22110212112210 has 192 divisors, whose sum is σ = 59672436445440. Its totient is φ = 5675366822400.

The previous prime is 22110212112187. The next prime is 22110212112217. The reversal of 22110212112210 is 1221121201122.

22110212112210 is a `hidden beast` number, since 2 + 211 + 0 + 21 + 211 + 221 + 0 = 666.

It is a super-2 number, since 2×22110212112210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22110212112217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 431485771 + ... + 431537009.

It is an arithmetic number, because the mean of its divisors is an integer number (310793939820).

Almost surely, 2^{22110212112210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22110212112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29836218222720).

22110212112210 is an abundant number, since it is smaller than the sum of its proper divisors (37562224333230).

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

22110212112210 is a wasteful number, since it uses less digits than its factorization.

22110212112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52673 (or 52670 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22110212112210 its reverse (1221121201122), we get a palindrome (23331333313332).

The spelling of 22110212112210 in words is "twenty-two trillion, one hundred ten billion, two hundred twelve million, one hundred twelve thousand, two hundred ten".