2001000202002 has 12 divisors (see below), whose sum is σ = 4335500437710. Its totient is φ = 667000067328.

The previous prime is 2001000201979. The next prime is 2001000202007. The reversal of 2001000202002 is 2002020001002.

It can be written as a sum of positive squares in only one way, i.e., 1300195148121 + 700805053881 = 1140261^2 + 837141^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2001000202007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55583338927 + ... + 55583338962.

Almost surely, 2^{2001000202002} is an apocalyptic number.

2001000202002 is an abundant number, since it is smaller than the sum of its proper divisors (2334500235708).

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

2001000202002 is a wasteful number, since it uses less digits than its factorization.

2001000202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111166677897 (or 111166677894 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 2001000202002 its reverse (2002020001002), we get a palindrome (4003020203004).

The spelling of 2001000202002 in words is "two trillion, one billion, two hundred two thousand, two".