2002020121019 has 4 divisors (see below), whose sum is σ = 2004081934680. Its totient is φ = 1999958307360.

The previous prime is 2002020120983. The next prime is 2002020121067. The reversal of 2002020121019 is 9101210202002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2002020121019 - 2³⁶ = 1933300644283 is a prime.

It is a super-2 number, since 2×2002020121019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002020121069) 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, 1030905374 + ... + 1030907315.

It is an arithmetic number, because the mean of its divisors is an integer number (501020483670).

Almost surely, 2^{2002020121019} is an apocalyptic number.

2002020121019 is a deficient number, since it is larger than the sum of its proper divisors (2061813661).

2002020121019 is an equidigital number, since it uses as much as digits as its factorization.

2002020121019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061813660.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 2002020121019 in words is "two trillion, two billion, twenty million, one hundred twenty-one thousand, nineteen".