2231021320200 has 72 divisors (see below), whose sum is σ = 7492513273050. Its totient is φ = 594939018240.

The previous prime is 2231021320163. The next prime is 2231021320219. The reversal of 2231021320200 is 20231201322.

2231021320200 is a `hidden beast` number, since 2 + 231 + 0 + 213 + 20 + 200 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1824071738724 + 406949581476 = 1350582^2 + 637926^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-3 number, since 3×2231021320200³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 17 ways as a sum of consecutive naturals, for example, 619726345 + ... + 619729944.

Almost surely, 2^{2231021320200} is an apocalyptic number.

2231021320200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231021320200 is an abundant number, since it is smaller than the sum of its proper divisors (5261491952850).

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

2231021320200 is a wasteful number, since it uses less digits than its factorization.

2231021320200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239456311 (or 1239456299 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2231021320200 its reverse (20231201322), we get a palindrome (2251252521522).

The spelling of 2231021320200 in words is "two trillion, two hundred thirty-one billion, twenty-one million, three hundred twenty thousand, two hundred".