212021020302 has 192 divisors, whose sum is σ = 546530664960. Its totient is φ = 54311088384.

The previous prime is 212021020279. The next prime is 212021020303. The reversal of 212021020302 is 203020120212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021020303) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 118645453 + ... + 118647239.

It is an arithmetic number, because the mean of its divisors is an integer number (2846513880).

Almost surely, 2^212021020302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021020302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273265332480).

212021020302 is an abundant number, since it is smaller than the sum of its proper divisors (334509644658).

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

212021020302 is a wasteful number, since it uses less digits than its factorization.

212021020302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 212021020302 its reverse (203020120212), we get a palindrome (415041140514).

The spelling of 212021020302 in words is "two hundred twelve billion, twenty-one million, twenty thousand, three hundred two".