210221213323020 has 48 divisors (see below), whose sum is σ = 588677237217888. Its totient is φ = 56053481656320.

The previous prime is 210221213323003. The next prime is 210221213323067. The reversal of 210221213323020 is 20323312122012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171526891 + ... + 172748130.

It is an arithmetic number, because the mean of its divisors is an integer number (12264109108706).

Almost surely, 2^{210221213323020} is an apocalyptic number.

210221213323020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210221213323020 is an abundant number, since it is smaller than the sum of its proper divisors (378456023894868).

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

210221213323020 is a wasteful number, since it uses less digits than its factorization.

210221213323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344285210 (or 344285208 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 210221213323020 its reverse (20323312122012), we get a palindrome (230544525445032).

The spelling of 210221213323020 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred thirteen million, three hundred twenty-three thousand, twenty".