2001210012002 has 16 divisors (see below), whose sum is σ = 3028110676152. Its totient is φ = 991870064640.

The previous prime is 2001210012001. The next prime is 2001210012007. The reversal of 2001210012002 is 2002100121002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 381650892841 + 1619559119161 = 617779^2 + 1272619^2 .

It is not an unprimeable number, because it can be changed into a prime (2001210012001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7437023 + ... + 7701410.

Almost surely, 2^{2001210012002} is an apocalyptic number.

2001210012002 is a deficient number, since it is larger than the sum of its proper divisors (1026900664150).

2001210012002 is a wasteful number, since it uses less digits than its factorization.

2001210012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15139013.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2001210012002 its reverse (2002100121002), we get a palindrome (4003310133004).

The spelling of 2001210012002 in words is "two trillion, one billion, two hundred ten million, twelve thousand, two".