1002020219999 has 2 divisors, whose sum is σ = 1002020220000. Its totient is φ = 1002020219998.

The previous prime is 1002020219939. The next prime is 1002020220031. The reversal of 1002020219999 is 9999120202001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002020219999 - 2⁸ = 1002020219743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002020219939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501010109999 + 501010110000.

It is an arithmetic number, because the mean of its divisors is an integer number (501010110000).

Almost surely, 2^{1002020219999} is an apocalyptic number.

1002020219999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002020219999 is an equidigital number, since it uses as much as digits as its factorization.

1002020219999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 44.

The spelling of 1002020219999 in words is "one trillion, two billion, twenty million, two hundred nineteen thousand, nine hundred ninety-nine".