221132021201200 has 120 divisors (see below), whose sum is σ = 554377092693408. Its totient is φ = 84605701847040.

The previous prime is 221132021201183. The next prime is 221132021201209. The reversal of 221132021201200 is 2102120231122.

It is not an unprimeable number, because it can be changed into a prime (221132021201209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 742410702 + ... + 742708498.

Almost surely, 2^{221132021201200} is an apocalyptic number.

221132021201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221132021201200 is an abundant number, since it is smaller than the sum of its proper divisors (333245071492208).

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

221132021201200 is a wasteful number, since it uses less digits than its factorization.

221132021201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378551 (or 378540 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221132021201200 its reverse (2102120231122), we get a palindrome (223234141432322).

The spelling of 221132021201200 in words is "two hundred twenty-one trillion, one hundred thirty-two billion, twenty-one million, two hundred one thousand, two hundred".