102021201012 has 24 divisors (see below), whose sum is σ = 239088992800. Its totient is φ = 33858563616.

The previous prime is 102021200959. The next prime is 102021201047. The reversal of 102021201012 is 210102120201.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18560062 + ... + 18565557.

Almost surely, 2^102021201012 is an apocalyptic number.

102021201012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102021201012 is an abundant number, since it is smaller than the sum of its proper divisors (137067791788).

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

102021201012 is a wasteful number, since it uses less digits than its factorization.

102021201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37125855 (or 37125853 counting only the distinct ones).

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

Adding to 102021201012 its reverse (210102120201), we get a palindrome (312123321213).

The spelling of 102021201012 in words is "one hundred two billion, twenty-one million, two hundred one thousand, twelve".