102020212221100 has 108 divisors (see below), whose sum is σ = 225687419658792. Its totient is φ = 40026393728000.

The previous prime is 102020212221023. The next prime is 102020212221131. The reversal of 102020212221100 is 1122212020201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 108683364 + ... + 109618036.

It is an arithmetic number, because the mean of its divisors is an integer number (2089698330174).

Almost surely, 2^{102020212221100} is an apocalyptic number.

102020212221100 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 102020212221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112843709829396).

102020212221100 is an abundant number, since it is smaller than the sum of its proper divisors (123667207437692).

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

102020212221100 is a wasteful number, since it uses less digits than its factorization.

102020212221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934996 (or 934888 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102020212221100 its reverse (1122212020201), we get a palindrome (103142424241301).

The spelling of 102020212221100 in words is "one hundred two trillion, twenty billion, two hundred twelve million, two hundred twenty-one thousand, one hundred".