102021010200 has 144 divisors (see below), whose sum is σ = 351880804080. Its totient is φ = 26470298880.

The previous prime is 102021010187. The next prime is 102021010367. The reversal of 102021010200 is 2010120201.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 699324 + ... + 832523.

It is an arithmetic number, because the mean of its divisors is an integer number (2443616695).

Almost surely, 2^102021010200 is an apocalyptic number.

102021010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021010200 is an abundant number, since it is smaller than the sum of its proper divisors (249859793880).

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

102021010200 is a wasteful number, since it uses less digits than its factorization.

102021010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531906 (or 1531894 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 102021010200 its reverse (2010120201), we get a palindrome (104031130401).

The spelling of 102021010200 in words is "one hundred two billion, twenty-one million, ten thousand, two hundred".