210002010021000 has 256 divisors, whose sum is σ = 770830909056000. Its totient is φ = 52706386713600.

The previous prime is 210002010020981. The next prime is 210002010021007. The reversal of 210002010021000 is 120010200012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (210002010021007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 228301360 + ... + 229219359.

It is an arithmetic number, because the mean of its divisors is an integer number (3011058238500).

Almost surely, 2^{210002010021000} is an apocalyptic number.

210002010021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210002010021000 is an abundant number, since it is smaller than the sum of its proper divisors (560828899035000).

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

210002010021000 is a wasteful number, since it uses less digits than its factorization.

210002010021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457520766 (or 457520746 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210002010021000 its reverse (120010200012), we get a palindrome (210122020221012).

The spelling of 210002010021000 in words is "two hundred ten trillion, two billion, ten million, twenty-one thousand".