2002111121012 has 6 divisors (see below), whose sum is σ = 3503694461778. Its totient is φ = 1001055560504.

The previous prime is 2002111120973. The next prime is 2002111121069. The reversal of 2002111121012 is 2101211112002.

It can be written as a sum of positive squares in only one way, i.e., 1823347898596 + 178763222416 = 1350314^2 + 422804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250263890123 + ... + 250263890130.

It is an arithmetic number, because the mean of its divisors is an integer number (583949076963).

Almost surely, 2^{2002111121012} is an apocalyptic number.

It is an amenable number.

2002111121012 is a deficient number, since it is larger than the sum of its proper divisors (1501583340766).

2002111121012 is a wasteful number, since it uses less digits than its factorization.

2002111121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500527780257 (or 500527780255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2002111121012 its reverse (2101211112002), we get a palindrome (4103322233014).

The spelling of 2002111121012 in words is "two trillion, two billion, one hundred eleven million, one hundred twenty-one thousand, twelve".