202020012 has 72 divisors (see below), whose sum is σ = 522849600. Its totient is φ = 65749728.

The previous prime is 202019969. The next prime is 202020019. The reversal of 202020012 is 210020202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 202019976 and 202020003.

It is not an unprimeable number, because it can be changed into a prime (202020019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 481939 + ... + 482357.

It is an arithmetic number, because the mean of its divisors is an integer number (7261800).

Almost surely, 2^202020012 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 202020012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261424800).

202020012 is an abundant number, since it is smaller than the sum of its proper divisors (320829588).

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

202020012 is a wasteful number, since it uses less digits than its factorization.

202020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 202020012 is about 14213.3744058193. The cubic root of 202020012 is about 586.7658063919.

Adding to 202020012 its reverse (210020202), we get a palindrome (412040214).

The spelling of 202020012 in words is "two hundred two million, twenty thousand, twelve".