102002020120012 has 24 divisors (see below), whose sum is σ = 181930525217280. Its totient is φ = 50030894390400.

The previous prime is 102002020119997. The next prime is 102002020120019. The reversal of 102002020120012 is 210021020200201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102002020119974 and 102002020120001.

It is not an unprimeable number, because it can be changed into a prime (102002020120019) 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, 1127996239 + ... + 1128086662.

It is an arithmetic number, because the mean of its divisors is an integer number (7580438550720).

Almost surely, 2^{102002020120012} is an apocalyptic number.

It is an amenable number.

102002020120012 is a deficient number, since it is larger than the sum of its proper divisors (79928505097268).

102002020120012 is a wasteful number, since it uses less digits than its factorization.

102002020120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256083121 (or 2256083119 counting only the distinct ones).

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

Adding to 102002020120012 its reverse (210021020200201), we get a palindrome (312023040320213).

The spelling of 102002020120012 in words is "one hundred two trillion, two billion, twenty million, one hundred twenty thousand, twelve".