1222000022200 has 96 divisors (see below), whose sum is σ = 2939597568000. Its totient is φ = 471868275200.

The previous prime is 1222000022119. The next prime is 1222000022203. The reversal of 1222000022200 is 22200002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222000022203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46787145 + ... + 46813255.

It is an arithmetic number, because the mean of its divisors is an integer number (30620808000).

Almost surely, 2^{1222000022200} is an apocalyptic number.

1222000022200 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 1222000022200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469798784000).

1222000022200 is an abundant number, since it is smaller than the sum of its proper divisors (1717597545800).

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

1222000022200 is a wasteful number, since it uses less digits than its factorization.

1222000022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34225 (or 34216 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 1222000022200 its reverse (22200002221), we get a palindrome (1244200024421).

The spelling of 1222000022200 in words is "one trillion, two hundred twenty-two billion, twenty-two thousand, two hundred".