202021012 has 12 divisors (see below), whose sum is σ = 358012480. Its totient is φ = 99731736.

The previous prime is 202020997. The next prime is 202021021. The reversal of 202021012 is 210120202.

It is a self number, because there is not a number n which added to its sum of digits gives 202021012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319338 + ... + 319969.

Almost surely, 2^202021012 is an apocalyptic number.

It is an amenable number.

202021012 is a deficient number, since it is larger than the sum of its proper divisors (155991468).

202021012 is a wasteful number, since it uses less digits than its factorization.

202021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639390 (or 639388 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 202021012 is about 14213.4095839105. The cubic root of 202021012 is about 586.7667745547.

Adding to 202021012 its reverse (210120202), we get a palindrome (412141214).

It can be divided in two parts, 2020 and 21012, that added together give a palindrome (23032).

The spelling of 202021012 in words is "two hundred two million, twenty-one thousand, twelve".