102120012100120 has 64 divisors (see below), whose sum is σ = 264918160422720. Its totient is φ = 34702729764864.

The previous prime is 102120012100033. The next prime is 102120012100121. The reversal of 102120012100120 is 21001210021201.

It is a self number, because there is not a number n which added to its sum of digits gives 102120012100120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120012100121) 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, 1613748577 + ... + 1613811856.

It is an arithmetic number, because the mean of its divisors is an integer number (4139346256605).

Almost surely, 2^{102120012100120} is an apocalyptic number.

102120012100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120012100120 is an abundant number, since it is smaller than the sum of its proper divisors (162798148322600).

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

102120012100120 is a wasteful number, since it uses less digits than its factorization.

102120012100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227560564 (or 3227560560 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102120012100120 its reverse (21001210021201), we get a palindrome (123121222121321).

The spelling of 102120012100120 in words is "one hundred two trillion, one hundred twenty billion, twelve million, one hundred thousand, one hundred twenty".