210020010221000 has 128 divisors (see below), whose sum is σ = 561901307385600. Its totient is φ = 71975092147200.

The previous prime is 210020010220967. The next prime is 210020010221011. The reversal of 210020010221000 is 122010020012.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9251696 + ... + 22486304.

It is an arithmetic number, because the mean of its divisors is an integer number (4389853963950).

Almost surely, 2^{210020010221000} is an apocalyptic number.

210020010221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210020010221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280950653692800).

210020010221000 is an abundant number, since it is smaller than the sum of its proper divisors (351881297164600).

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

210020010221000 is a wasteful number, since it uses less digits than its factorization.

210020010221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13236904 (or 13236890 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210020010221000 its reverse (122010020012), we get a palindrome (210142020241012).

The spelling of 210020010221000 in words is "two hundred ten trillion, twenty billion, ten million, two hundred twenty-one thousand".