210020001012 has 48 divisors (see below), whose sum is σ = 544631646720. Its totient is φ = 69989265216.

The previous prime is 210020001007. The next prime is 210020001017. The reversal of 210020001012 is 210100020012.

210020001012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (210020001007) and next prime (210020001017).

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

It is a junction number, because it is equal to n+sod(n) for n = 210020000985 and 210020001003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020001017) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 198493 + ... + 677819.

It is an arithmetic number, because the mean of its divisors is an integer number (11346492640).

Almost surely, 2^210020001012 is an apocalyptic number.

It is an amenable number.

210020001012 is an abundant number, since it is smaller than the sum of its proper divisors (334611645708).

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

210020001012 is a wasteful number, since it uses less digits than its factorization.

210020001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483397 (or 483389 counting only the distinct ones).

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

Adding to 210020001012 its reverse (210100020012), we get a palindrome (420120021024).

The spelling of 210020001012 in words is "two hundred ten billion, twenty million, one thousand, twelve".