102120104420140 has 48 divisors (see below), whose sum is σ = 218120178276000. Its totient is φ = 40149593551872.

The previous prime is 102120104420077. The next prime is 102120104420141. The reversal of 102120104420140 is 41024401021201.

It is not an unprimeable number, because it can be changed into a prime (102120104420141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1181686 + ... + 14340034.

It is an arithmetic number, because the mean of its divisors is an integer number (4544170380750).

Almost surely, 2^{102120104420140} is an apocalyptic number.

102120104420140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120104420140 is an abundant number, since it is smaller than the sum of its proper divisors (116000073855860).

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

102120104420140 is a wasteful number, since it uses less digits than its factorization.

102120104420140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13164994 (or 13164992 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 102120104420140 its reverse (41024401021201), we get a palindrome (143144505441341).

The spelling of 102120104420140 in words is "one hundred two trillion, one hundred twenty billion, one hundred four million, four hundred twenty thousand, one hundred forty".