212021230302 has 96 divisors (see below), whose sum is σ = 530467763904. Its totient is φ = 59947776000.

The previous prime is 212021230297. The next prime is 212021230307. The reversal of 212021230302 is 203032120212.

212021230302 is a `hidden beast` number, since 2 + 120 + 212 + 30 + 302 = 666.

It is an interprime number because it is at equal distance from previous prime (212021230297) and next prime (212021230307).

It is a super-3 number, since 3×212021230302³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021230307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42769608 + ... + 42774564.

It is an arithmetic number, because the mean of its divisors is an integer number (5525705874).

Almost surely, 2^212021230302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021230302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265233881952).

212021230302 is an abundant number, since it is smaller than the sum of its proper divisors (318446533602).

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

212021230302 is a wasteful number, since it uses less digits than its factorization.

212021230302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8434 (or 8431 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212021230302 its reverse (203032120212), we get a palindrome (415053350514).

The spelling of 212021230302 in words is "two hundred twelve billion, twenty-one million, two hundred thirty thousand, three hundred two".