102120220120 has 64 divisors (see below), whose sum is σ = 235185081120. Its totient is φ = 39886070784.

The previous prime is 102120220093. The next prime is 102120220207. The reversal of 102120220120 is 21022021201.

It is a happy number.

102120220120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 102120220120.

It is a congruent number.

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, 7514772 + ... + 7528348.

Almost surely, 2^102120220120 is an apocalyptic number.

102120220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120220120 is an abundant number, since it is smaller than the sum of its proper divisors (133064861000).

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

102120220120 is a wasteful number, since it uses less digits than its factorization.

102120220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18004 (or 18000 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102120220120 its reverse (21022021201), we get a palindrome (123142241321).

The spelling of 102120220120 in words is "one hundred two billion, one hundred twenty million, two hundred twenty thousand, one hundred twenty".