1002002120012 has 12 divisors (see below), whose sum is σ = 1794282866376. Its totient is φ = 489349872480.

The previous prime is 1002002119991. The next prime is 1002002120029. The reversal of 1002002120012 is 2100212002001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1002002119975 and 1002002120002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2912796689 + ... + 2912797032.

It is an arithmetic number, because the mean of its divisors is an integer number (149523572198).

Almost surely, 2^{1002002120012} is an apocalyptic number.

It is an amenable number.

1002002120012 is a deficient number, since it is larger than the sum of its proper divisors (792280746364).

1002002120012 is a wasteful number, since it uses less digits than its factorization.

1002002120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825593768 (or 5825593766 counting only the distinct ones).

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

Adding to 1002002120012 its reverse (2100212002001), we get a palindrome (3102214122013).

The spelling of 1002002120012 in words is "one trillion, two billion, two million, one hundred twenty thousand, twelve".