102020021212200 has 768 divisors, whose sum is σ = 412661694627840. Its totient is φ = 20267739648000.

The previous prime is 102020021212189. The next prime is 102020021212243. The reversal of 102020021212200 is 2212120020201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102020021212200.

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 191 ways as a sum of consecutive naturals, for example, 61811685 + ... + 63440715.

It is an arithmetic number, because the mean of its divisors is an integer number (537319914880).

Almost surely, 2^{102020021212200} is an apocalyptic number.

102020021212200 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 102020021212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206330847313920).

102020021212200 is an abundant number, since it is smaller than the sum of its proper divisors (310641673415640).

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

102020021212200 is a wasteful number, since it uses less digits than its factorization.

102020021212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629138 (or 1629129 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102020021212200 its reverse (2212120020201), we get a palindrome (104232141232401).

The spelling of 102020021212200 in words is "one hundred two trillion, twenty billion, twenty-one million, two hundred twelve thousand, two hundred".