102102101022120 has 32 divisors (see below), whose sum is σ = 306306303066720. Its totient is φ = 27227226939200.

The previous prime is 102102101021971. The next prime is 102102101022127. The reversal of 102102101022120 is 21220101201201.

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 102102101022120.

It is not an unprimeable number, because it can be changed into a prime (102102101022127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425425420806 + ... + 425425421045.

It is an arithmetic number, because the mean of its divisors is an integer number (9572071970835).

Almost surely, 2^{102102101022120} is an apocalyptic number.

102102101022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102101022120 is an abundant number, since it is smaller than the sum of its proper divisors (204204202044600).

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

102102101022120 is a wasteful number, since it uses less digits than its factorization.

102102101022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850850841865 (or 850850841861 counting only the distinct ones).

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

Adding to 102102101022120 its reverse (21220101201201), we get a palindrome (123322202223321).

The spelling of 102102101022120 in words is "one hundred two trillion, one hundred two billion, one hundred one million, twenty-two thousand, one hundred twenty".