210221120102000 has 80 divisors (see below), whose sum is σ = 580931049646272. Its totient is φ = 72075812601600.

The previous prime is 210221120101961. The next prime is 210221120102011. The reversal of 210221120102000 is 201021122012.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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, 7507883147 + ... + 7507911146.

Almost surely, 2^{210221120102000} is an apocalyptic number.

210221120102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210221120102000 is an abundant number, since it is smaller than the sum of its proper divisors (370709929544272).

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

210221120102000 is a wasteful number, since it uses less digits than its factorization.

210221120102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15015794323 (or 15015794307 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210221120102000 its reverse (201021122012), we get a palindrome (210422141224012).

The spelling of 210221120102000 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred twenty million, one hundred two thousand".