2002020121005 has 16 divisors (see below), whose sum is σ = 3209756099904. Its totient is φ = 1065569429120.

The previous prime is 2002020120983. The next prime is 2002020121067. The reversal of 2002020121005 is 5001210202002.

It is not a de Polignac number, because 2002020121005 - 2⁹ = 2002020120493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135907104 + ... + 135921833.

It is an arithmetic number, because the mean of its divisors is an integer number (200609756244).

Almost surely, 2^{2002020121005} is an apocalyptic number.

It is an amenable number.

2002020121005 is a deficient number, since it is larger than the sum of its proper divisors (1207735978899).

2002020121005 is a wasteful number, since it uses less digits than its factorization.

2002020121005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271829436.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 2002020121005 its reverse (5001210202002), we get a palindrome (7003230323007).

The spelling of 2002020121005 in words is "two trillion, two billion, twenty million, one hundred twenty-one thousand, five".