2002021019 has 2 divisors, whose sum is σ = 2002021020. Its totient is φ = 2002021018.

The previous prime is 2002021001. The next prime is 2002021027. The reversal of 2002021019 is 9101202002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2002021019 - 2¹² = 2002016923 is a prime.

It is a super-2 number, since 2×2002021019² = 8016176321035596722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2002020988 and 2002021006.

It is not a weakly prime, because it can be changed into another prime (2002021069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001010509 + 1001010510.

It is an arithmetic number, because the mean of its divisors is an integer number (1001010510).

Almost surely, 2^2002021019 is an apocalyptic number.

2002021019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002021019 is an equidigital number, since it uses as much as digits as its factorization.

2002021019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2002021019 is about 44743.9495239300. The cubic root of 2002021019 is about 1260.3452944226.

The spelling of 2002021019 in words is "two billion, two million, twenty-one thousand, nineteen".