1202102001999 has 12 divisors (see below), whose sum is σ = 1827757430200. Its totient is φ = 759222316944.

The previous prime is 1202102001949. The next prime is 1202102002067. The reversal of 1202102001999 is 9991002012021.

It is not a de Polignac number, because 1202102001999 - 2¹¹ = 1202101999951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202102001949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3514917964 + ... + 3514918305.

Almost surely, 2^{1202102001999} is an apocalyptic number.

1202102001999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1202102001999 is a deficient number, since it is larger than the sum of its proper divisors (625655428201).

1202102001999 is a wasteful number, since it uses less digits than its factorization.

1202102001999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7029836294 (or 7029836291 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 1202102001999 in words is "one trillion, two hundred two billion, one hundred two million, one thousand, nine hundred ninety-nine".