102102110210220 has 24 divisors (see below), whose sum is σ = 285885908588784. Its totient is φ = 27227229389376.

The previous prime is 102102110210153. The next prime is 102102110210251. The reversal of 102102110210220 is 22012011201201.

It is a super-3 number, since 3×102102110210220³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 102102110210220.

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 7 ways as a sum of consecutive naturals, for example, 850850918359 + ... + 850850918478.

It is an arithmetic number, because the mean of its divisors is an integer number (11911912857866).

Almost surely, 2^{102102110210220} is an apocalyptic number.

102102110210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102110210220 is an abundant number, since it is smaller than the sum of its proper divisors (183783798378564).

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

102102110210220 is a wasteful number, since it uses less digits than its factorization.

102102110210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701701836849 (or 1701701836847 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102102110210220 its reverse (22012011201201), we get a palindrome (124114121411421).

The spelling of 102102110210220 in words is "one hundred two trillion, one hundred two billion, one hundred ten million, two hundred ten thousand, two hundred twenty".