102021210200 has 384 divisors, whose sum is σ = 301199472000. Its totient is φ = 31461580800.

The previous prime is 102021210139. The next prime is 102021210223. The reversal of 102021210200 is 2012120201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 126107396 + ... + 126108204.

It is an arithmetic number, because the mean of its divisors is an integer number (784373625).

Almost surely, 2^102021210200 is an apocalyptic number.

102021210200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102021210200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150599736000).

102021210200 is an abundant number, since it is smaller than the sum of its proper divisors (199178261800).

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

102021210200 is a wasteful number, since it uses less digits than its factorization.

102021210200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102021210200 its reverse (2012120201), we get a palindrome (104033330401).

The spelling of 102021210200 in words is "one hundred two billion, twenty-one million, two hundred ten thousand, two hundred".