212101000030 has 48 divisors (see below), whose sum is σ = 402978532320. Its totient is φ = 80363600064.

The previous prime is 212101000019. The next prime is 212101000031. The reversal of 212101000030 is 30000101212.

212101000030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×212101000030⁴ (a number of 46 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 212100999980 and 212101000016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101000031) 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 23 ways as a sum of consecutive naturals, for example, 350236 + ... + 739504.

It is an arithmetic number, because the mean of its divisors is an integer number (8395386090).

Almost surely, 2^212101000030 is an apocalyptic number.

212101000030 is a deficient number, since it is larger than the sum of its proper divisors (190877532290).

212101000030 is a wasteful number, since it uses less digits than its factorization.

212101000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389425 (or 389402 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 212101000030 its reverse (30000101212), we get a palindrome (242101101242).

The spelling of 212101000030 in words is "two hundred twelve billion, one hundred one million, thirty", and thus it is an aban number.