1225542201200 has 240 divisors, whose sum is σ = 3054592931040. Its totient is φ = 472197120000.

The previous prime is 1225542201161. The next prime is 1225542201217. The reversal of 1225542201200 is 21022455221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225542201200.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 756973991 + ... + 756975609.

It is an arithmetic number, because the mean of its divisors is an integer number (12727470546).

Almost surely, 2^{1225542201200} is an apocalyptic number.

1225542201200 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 1225542201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527296465520).

1225542201200 is an abundant number, since it is smaller than the sum of its proper divisors (1829050729840).

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

1225542201200 is a wasteful number, since it uses less digits than its factorization.

1225542201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236 (or 2225 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 1225542201200 its reverse (21022455221), we get a palindrome (1246564656421).

The spelling of 1225542201200 in words is "one trillion, two hundred twenty-five billion, five hundred forty-two million, two hundred one thousand, two hundred".