3020221021212 has 144 divisors (see below), whose sum is σ = 7982663270400. Its totient is φ = 961003296000.

The previous prime is 3020221021201. The next prime is 3020221021217. The reversal of 3020221021212 is 2121201220203.

3020221021212 is a `hidden beast` number, since 30 + 202 + 210 + 212 + 12 = 666.

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 (3020221021217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1258948789 + ... + 1258951187.

It is an arithmetic number, because the mean of its divisors is an integer number (55435161600).

Almost surely, 2^{3020221021212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3020221021212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3991331635200).

3020221021212 is an abundant number, since it is smaller than the sum of its proper divisors (4962442249188).

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

3020221021212 is a wasteful number, since it uses less digits than its factorization.

3020221021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904 (or 4899 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 3020221021212 its reverse (2121201220203), we get a palindrome (5141422241415).

The spelling of 3020221021212 in words is "three trillion, twenty billion, two hundred twenty-one million, twenty-one thousand, two hundred twelve".