202021020012 has 48 divisors (see below), whose sum is σ = 543757536000. Its totient is φ = 57180846912.

The previous prime is 202021019999. The next prime is 202021020017. The reversal of 202021020012 is 210020120202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 202021020012.

It is not an unprimeable number, because it can be changed into a prime (202021020017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11229387 + ... + 11247362.

It is an arithmetic number, because the mean of its divisors is an integer number (11328282000).

Almost surely, 2^202021020012 is an apocalyptic number.

It is an amenable number.

202021020012 is an abundant number, since it is smaller than the sum of its proper divisors (341736515988).

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

202021020012 is a wasteful number, since it uses less digits than its factorization.

202021020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22476870 (or 22476868 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202021020012 its reverse (210020120202), we get a palindrome (412041140214).

The spelling of 202021020012 in words is "two hundred two billion, twenty-one million, twenty thousand, twelve".