20020002313212 has 192 divisors, whose sum is σ = 57129032056320. Its totient is φ = 6062538968640.

The previous prime is 20020002313189. The next prime is 20020002313219. The reversal of 20020002313212 is 21231320002002.

20020002313212 is a `hidden beast` number, since 20 + 0 + 200 + 0 + 231 + 3 + 212 = 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 (20020002313219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 214569123 + ... + 214662405.

It is an arithmetic number, because the mean of its divisors is an integer number (297547041960).

Almost surely, 2^{20020002313212} is an apocalyptic number.

20020002313212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020002313212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28564516028160).

20020002313212 is an abundant number, since it is smaller than the sum of its proper divisors (37109029743108).

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

20020002313212 is a wasteful number, since it uses less digits than its factorization.

20020002313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94822 (or 94792 counting only the distinct ones).

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

Adding to 20020002313212 its reverse (21231320002002), we get a palindrome (41251322315214).

The spelling of 20020002313212 in words is "twenty trillion, twenty billion, two million, three hundred thirteen thousand, two hundred twelve".