202112020212 has 72 divisors (see below), whose sum is σ = 504732779712. Its totient is φ = 62925811200.

The previous prime is 202112020181. The next prime is 202112020213. The reversal of 202112020212 is 212020211202.

It is a junction number, because it is equal to n+sod(n) for n = 202112020191 and 202112020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112020213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20989 + ... + 636132.

It is an arithmetic number, because the mean of its divisors is an integer number (7010177496).

Almost surely, 2^202112020212 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 202112020212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252366389856).

202112020212 is an abundant number, since it is smaller than the sum of its proper divisors (302620759500).

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

202112020212 is a wasteful number, since it uses less digits than its factorization.

202112020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657237 (or 657216 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202112020212 its reverse (212020211202), we get a palindrome (414132231414).

The spelling of 202112020212 in words is "two hundred two billion, one hundred twelve million, twenty thousand, two hundred twelve".