1022122222200 has 384 divisors, whose sum is σ = 3760766884800. Its totient is φ = 254259855360.

The previous prime is 1022122222169. The next prime is 1022122222211. The reversal of 1022122222200 is 22222212201.

1022122222200 is a `hidden beast` number, since 1 + 0 + 221 + 2 + 222 + 220 + 0 = 666.

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

It is a congruent 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, 10324134 + ... + 10422666.

Almost surely, 2^{1022122222200} is an apocalyptic number.

1022122222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022122222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880383442400).

1022122222200 is an abundant number, since it is smaller than the sum of its proper divisors (2738644662600).

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

1022122222200 is a wasteful number, since it uses less digits than its factorization.

1022122222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98688 (or 98673 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1022122222200 its reverse (22222212201), we get a palindrome (1044344434401).

Subtracting from 1022122222200 its reverse (22222212201), we obtain a palindrome (999900009999).

The spelling of 1022122222200 in words is "one trillion, twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred".