102102102100220 has 24 divisors (see below), whose sum is σ = 225699383590800. Its totient is φ = 38691322900992.

The previous prime is 102102102100217. The next prime is 102102102100231. The reversal of 102102102100220 is 22001201201201.

It is a junction number, because it is equal to n+sod(n) for n = 102102102100195 and 102102102100204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134344870805 + ... + 134344871564.

It is an arithmetic number, because the mean of its divisors is an integer number (9404140982950).

Almost surely, 2^{102102102100220} is an apocalyptic number.

102102102100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102102100220 is an abundant number, since it is smaller than the sum of its proper divisors (123597281490580).

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

102102102100220 is a wasteful number, since it uses less digits than its factorization.

102102102100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268689742397 (or 268689742395 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102102102100220 its reverse (22001201201201), we get a palindrome (124103303301421).

The spelling of 102102102100220 in words is "one hundred two trillion, one hundred two billion, one hundred two million, one hundred thousand, two hundred twenty".