1022221222110 has 192 divisors, whose sum is σ = 2955800180736. Its totient is φ = 242995334400.

The previous prime is 1022221222109. The next prime is 1022221222117. The reversal of 1022221222110 is 112221222201.

It is a happy number.

1022221222110 is a `hidden beast` number, since 1 + 0 + 222 + 212 + 221 + 10 = 666.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221222117) 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, 112438665 + ... + 112447755.

It is an arithmetic number, because the mean of its divisors is an integer number (15394792608).

Almost surely, 2^{1022221222110} is an apocalyptic number.

1022221222110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022221222110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477900090368).

1022221222110 is an abundant number, since it is smaller than the sum of its proper divisors (1933578958626).

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

1022221222110 is a wasteful number, since it uses less digits than its factorization.

1022221222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11311 (or 11308 counting only the distinct ones).

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

Adding to 1022221222110 its reverse (112221222201), we get a palindrome (1134442444311).

Subtracting from 1022221222110 its reverse (112221222201), we obtain a palindrome (909999999909).

The spelling of 1022221222110 in words is "one trillion, twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred ten".