210221021102120 has 64 divisors (see below), whose sum is σ = 540583388766720. Its totient is φ = 72073772158464.

The previous prime is 210221021102119. The next prime is 210221021102167. The reversal of 210221021102120 is 21201120122012.

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, 357317 + ... + 20507796.

It is an arithmetic number, because the mean of its divisors is an integer number (8446615449480).

Almost surely, 2^{210221021102120} is an apocalyptic number.

210221021102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210221021102120 is an abundant number, since it is smaller than the sum of its proper divisors (330362367664600).

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

210221021102120 is a wasteful number, since it uses less digits than its factorization.

210221021102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20901114 (or 20901110 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210221021102120 its reverse (21201120122012), we get a palindrome (231422141224132).

The spelling of 210221021102120 in words is "two hundred ten trillion, two hundred twenty-one billion, twenty-one million, one hundred two thousand, one hundred twenty".