210021012030 has 64 divisors (see below), whose sum is σ = 515170368000. Its totient is φ = 54779598720.

The previous prime is 210021012029. The next prime is 210021012107. The reversal of 210021012030 is 30210120012.

210021012030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210021011997 and 210021012015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54100 + ... + 650360.

It is an arithmetic number, because the mean of its divisors is an integer number (8049537000).

Almost surely, 2^210021012030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210021012030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257585184000).

210021012030 is an abundant number, since it is smaller than the sum of its proper divisors (305149355970).

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

210021012030 is a wasteful number, since it uses less digits than its factorization.

210021012030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596529.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 210021012030 its reverse (30210120012), we get a palindrome (240231132042).

The spelling of 210021012030 in words is "two hundred ten billion, twenty-one million, twelve thousand, thirty".