1222120110200 has 144 divisors (see below), whose sum is σ = 3124285710000. Its totient is φ = 444256243200.

The previous prime is 1222120110193. The next prime is 1222120110203. The reversal of 1222120110200 is 20110212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222120110203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 91203101 + ... + 91216499.

Almost surely, 2^{1222120110200} is an apocalyptic number.

1222120110200 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 1222120110200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1562142855000).

1222120110200 is an abundant number, since it is smaller than the sum of its proper divisors (1902165599800).

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

1222120110200 is a wasteful number, since it uses less digits than its factorization.

1222120110200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17206 (or 17186 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1222120110200 its reverse (20110212221), we get a palindrome (1242230322421).

The spelling of 1222120110200 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred ten thousand, two hundred".