22122201021210 has 96 divisors (see below), whose sum is σ = 57884672926080. Its totient is φ = 5861635300224.

The previous prime is 22122201021209. The next prime is 22122201021223. The reversal of 22122201021210 is 1212010222122.

It is a happy number.

22122201021210 is a `hidden beast` number, since 2 + 212 + 220 + 1 + 0 + 21 + 210 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60801811 + ... + 61164569.

It is an arithmetic number, because the mean of its divisors is an integer number (602965342980).

Almost surely, 2^{22122201021210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22122201021210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28942336463040).

22122201021210 is an abundant number, since it is smaller than the sum of its proper divisors (35762471904870).

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

22122201021210 is a wasteful number, since it uses less digits than its factorization.

22122201021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367092 (or 367089 counting only the distinct ones).

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

Adding to 22122201021210 its reverse (1212010222122), we get a palindrome (23334211243332).

The spelling of 22122201021210 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred one million, twenty-one thousand, two hundred ten".