1202020009999 has 2 divisors, whose sum is σ = 1202020010000. Its totient is φ = 1202020009998.

The previous prime is 1202020009991. The next prime is 1202020010011. The reversal of 1202020009999 is 9999000202021.

It is a weak prime.

It is an emirp because it is prime and its reverse (9999000202021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202020009999 - 2³ = 1202020009991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202020009991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601010004999 + 601010005000.

It is an arithmetic number, because the mean of its divisors is an integer number (601010005000).

Almost surely, 2^{1202020009999} is an apocalyptic number.

1202020009999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202020009999 is an equidigital number, since it uses as much as digits as its factorization.

1202020009999 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 43.

The spelling of 1202020009999 in words is "one trillion, two hundred two billion, twenty million, nine thousand, nine hundred ninety-nine".