213330221100 has 72 divisors (see below), whose sum is σ = 685817163920. Its totient is φ = 56888058240.

The previous prime is 213330221077. The next prime is 213330221101. The reversal of 213330221100 is 1122033312.

213330221100 is a `hidden beast` number, since 2 + 13 + 330 + 221 + 100 = 666.

213330221100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (213330221101) by changing a digit.

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, 39502897 + ... + 39508296.

Almost surely, 2^213330221100 is an apocalyptic number.

213330221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213330221100 is an abundant number, since it is smaller than the sum of its proper divisors (472486942820).

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

213330221100 is a wasteful number, since it uses less digits than its factorization.

213330221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79011216 (or 79011203 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213330221100 its reverse (1122033312), we get a palindrome (214452254412).

The spelling of 213330221100 in words is "two hundred thirteen billion, three hundred thirty million, two hundred twenty-one thousand, one hundred".