221131301331300 has 72 divisors (see below), whose sum is σ = 642625096507296. Its totient is φ = 58708574549760.

The previous prime is 221131301331271. The next prime is 221131301331313. The reversal of 221131301331300 is 3133103131122.

It is a super-3 number, since 3×221131301331300³ (a number of 44 digits) contains 333 as substring.

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 23 ways as a sum of consecutive naturals, for example, 1623509737 + ... + 1623645936.

Almost surely, 2^{221131301331300} is an apocalyptic number.

221131301331300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221131301331300 is an abundant number, since it is smaller than the sum of its proper divisors (421493795175996).

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

221131301331300 is a wasteful number, since it uses less digits than its factorization.

221131301331300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247155917 (or 3247155910 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 221131301331300 its reverse (3133103131122), we get a palindrome (224264404462422).

The spelling of 221131301331300 in words is "two hundred twenty-one trillion, one hundred thirty-one billion, three hundred one million, three hundred thirty-one thousand, three hundred".