1210222122200 has 288 divisors, whose sum is σ = 3678807770400. Its totient is φ = 360483471360.

The previous prime is 1210222122119. The next prime is 1210222122203. The reversal of 1210222122200 is 22212220121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210222122203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5144756 + ... + 5374844.

Almost surely, 2^{1210222122200} is an apocalyptic number.

1210222122200 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 1210222122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839403885200).

1210222122200 is an abundant number, since it is smaller than the sum of its proper divisors (2468585648200).

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

1210222122200 is a wasteful number, since it uses less digits than its factorization.

1210222122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230159 (or 230133 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1210222122200 its reverse (22212220121), we get a palindrome (1232434342321).

The spelling of 1210222122200 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred".