102120002012 has 48 divisors (see below), whose sum is σ = 215585422080. Its totient is φ = 41462178480.

The previous prime is 102120002011. The next prime is 102120002051. The reversal of 102120002012 is 210200021201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102120001984 and 102120002002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120002011) 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, 73814 + ... + 457917.

It is an arithmetic number, because the mean of its divisors is an integer number (4491362960).

Almost surely, 2^102120002012 is an apocalyptic number.

It is an amenable number.

102120002012 is an abundant number, since it is smaller than the sum of its proper divisors (113465420068).

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

102120002012 is an equidigital number, since it uses as much as digits as its factorization.

102120002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531799 (or 531759 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102120002012 its reverse (210200021201), we get a palindrome (312320023213).

The spelling of 102120002012 in words is "one hundred two billion, one hundred twenty million, two thousand, twelve".