210102021012 has 24 divisors (see below), whose sum is σ = 527948668576. Its totient is φ = 64646775648.

The previous prime is 210102020959. The next prime is 210102021013. The reversal of 210102021012 is 210120201012.

210102021012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210102021013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673403758 + ... + 673404069.

Almost surely, 2^210102021012 is an apocalyptic number.

It is an amenable number.

210102021012 is an abundant number, since it is smaller than the sum of its proper divisors (317846647564).

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

210102021012 is a wasteful number, since it uses less digits than its factorization.

210102021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346807847 (or 1346807845 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210102021012 its reverse (210120201012), we get a palindrome (420222222024).

The spelling of 210102021012 in words is "two hundred ten billion, one hundred two million, twenty-one thousand, twelve".