22102220112210 has 192 divisors, whose sum is σ = 67981285711872. Its totient is φ = 4876692645888.

The previous prime is 22102220112047. The next prime is 22102220112221. The reversal of 22102220112210 is 1221102220122.

It is a happy number.

22102220112210 is a `hidden beast` number, since 2 + 210 + 2 + 220 + 11 + 221 + 0 = 666.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 772647 + ... + 6693386.

It is an arithmetic number, because the mean of its divisors is an integer number (354069196416).

Almost surely, 2^{22102220112210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22102220112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33990642855936).

22102220112210 is an abundant number, since it is smaller than the sum of its proper divisors (45879065599662).

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

22102220112210 is a wasteful number, since it uses less digits than its factorization.

22102220112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7466217 (or 7466214 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22102220112210 its reverse (1221102220122), we get a palindrome (23323322332332).

The spelling of 22102220112210 in words is "twenty-two trillion, one hundred two billion, two hundred twenty million, one hundred twelve thousand, two hundred ten".