102002120020012 has 12 divisors (see below), whose sum is σ = 178529316698376. Its totient is φ = 50993743820480.

The previous prime is 102002120020007. The next prime is 102002120020019. The reversal of 102002120020012 is 210020021200201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102002120019974 and 102002120020001.

It is not an unprimeable number, because it can be changed into a prime (102002120020019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1829016013 + ... + 1829071780.

It is an arithmetic number, because the mean of its divisors is an integer number (14877443058198).

Almost surely, 2^{102002120020012} is an apocalyptic number.

It is an amenable number.

102002120020012 is a deficient number, since it is larger than the sum of its proper divisors (76527196678364).

102002120020012 is a wasteful number, since it uses less digits than its factorization.

102002120020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658094768 (or 3658094766 counting only the distinct ones).

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

Adding to 102002120020012 its reverse (210020021200201), we get a palindrome (312022141220213).

The spelling of 102002120020012 in words is "one hundred two trillion, two billion, one hundred twenty million, twenty thousand, twelve".