210330021000 has 128 divisors (see below), whose sum is σ = 715887020160. Its totient is φ = 50989088000.

The previous prime is 210330020987. The next prime is 210330021019. The reversal of 210330021000 is 120033012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3153819 + ... + 3219818.

It is an arithmetic number, because the mean of its divisors is an integer number (5592867345).

Almost surely, 2^210330021000 is an apocalyptic number.

210330021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210330021000 is an abundant number, since it is smaller than the sum of its proper divisors (505556999160).

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

210330021000 is a wasteful number, since it uses less digits than its factorization.

210330021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6373672 (or 6373658 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 210330021000 its reverse (120033012), we get a palindrome (210450054012).

The spelling of 210330021000 in words is "two hundred ten billion, three hundred thirty million, twenty-one thousand".