102102120021120 has 128 divisors (see below), whose sum is σ = 325453755824640. Its totient is φ = 27226960257024.

The previous prime is 102102120021103. The next prime is 102102120021131. The reversal of 102102120021120 is 21120021201201.

It is a tau number, because it is divible by the number of its divisors (128).

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 102102120021120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257171884 + ... + 257568596.

It is an arithmetic number, because the mean of its divisors is an integer number (2542607467380).

Almost surely, 2^{102102120021120} is an apocalyptic number.

102102120021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102120021120 is an abundant number, since it is smaller than the sum of its proper divisors (223351635803520).

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

102102120021120 is a wasteful number, since it uses less digits than its factorization.

102102120021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530782 (or 530770 counting only the distinct ones).

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

Adding to 102102120021120 its reverse (21120021201201), we get a palindrome (123222141222321).

The spelling of 102102120021120 in words is "one hundred two trillion, one hundred two billion, one hundred twenty million, twenty-one thousand, one hundred twenty".