1220552233200 has 360 divisors, whose sum is σ = 4439701174272. Its totient is φ = 309928481280.

The previous prime is 1220552233193. The next prime is 1220552233249. The reversal of 1220552233200 is 23322550221.

1220552233200 is a `hidden beast` number, since 1 + 220 + 5 + 5 + 2 + 233 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 18431349 + ... + 18497451.

Almost surely, 2^{1220552233200} is an apocalyptic number.

1220552233200 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 1220552233200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2219850587136).

1220552233200 is an abundant number, since it is smaller than the sum of its proper divisors (3219148941072).

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

1220552233200 is a wasteful number, since it uses less digits than its factorization.

1220552233200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66373 (or 66359 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 1220552233200 its reverse (23322550221), we get a palindrome (1243874783421).

The spelling of 1220552233200 in words is "one trillion, two hundred twenty billion, five hundred fifty-two million, two hundred thirty-three thousand, two hundred".