1002012201999 has 64 divisors (see below), whose sum is σ = 1576966579200. Its totient is φ = 627453421056.

The previous prime is 1002012201977. The next prime is 1002012202003. The reversal of 1002012201999 is 9991022102001.

It is not a de Polignac number, because 1002012201999 - 2³⁶ = 933292725263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002012201919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34902619 + ... + 34931315.

It is an arithmetic number, because the mean of its divisors is an integer number (24640102800).

Almost surely, 2^{1002012201999} is an apocalyptic number.

1002012201999 is a deficient number, since it is larger than the sum of its proper divisors (574954377201).

1002012201999 is a wasteful number, since it uses less digits than its factorization.

1002012201999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29741 (or 29735 counting only the distinct ones).

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

The spelling of 1002012201999 in words is "one trillion, two billion, twelve million, two hundred one thousand, nine hundred ninety-nine".