2002101209946 has 12 divisors (see below), whose sum is σ = 4337885954922. Its totient is φ = 667367069976.

The previous prime is 2002101209909. The next prime is 2002101209947. The reversal of 2002101209946 is 6499021012002.

It can be written as a sum of positive squares in only one way, i.e., 1908235569321 + 93865640625 = 1381389^2 + 306375^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2002101209946.

It is not an unprimeable number, because it can be changed into a prime (2002101209947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55613922481 + ... + 55613922516.

Almost surely, 2^{2002101209946} is an apocalyptic number.

2002101209946 is an abundant number, since it is smaller than the sum of its proper divisors (2335784744976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2002101209946 is a wasteful number, since it uses less digits than its factorization.

2002101209946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111227845005 (or 111227845002 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 2002101209946 in words is "two trillion, two billion, one hundred one million, two hundred nine thousand, nine hundred forty-six".