221022012201200 has 240 divisors, whose sum is σ = 633343951059456. Its totient is φ = 72473329843200.

The previous prime is 221022012201161. The next prime is 221022012201217. The reversal of 221022012201200 is 2102210220122.

It is a happy number.

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, 433350335 + ... + 433860065.

Almost surely, 2^{221022012201200} is an apocalyptic number.

221022012201200 is a gapful number since it is divisible by the number (20) 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 221022012201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316671975529728).

221022012201200 is an abundant number, since it is smaller than the sum of its proper divisors (412321938858256).

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

221022012201200 is a wasteful number, since it uses less digits than its factorization.

221022012201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516512 (or 516501 counting only the distinct ones).

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

Adding to 221022012201200 its reverse (2102210220122), we get a palindrome (223124222421322).

The spelling of 221022012201200 in words is "two hundred twenty-one trillion, twenty-two billion, twelve million, two hundred one thousand, two hundred".