2001212019983 has 4 divisors (see below), whose sum is σ = 2183140385448. Its totient is φ = 1819283654520.

The previous prime is 2001212019979. The next prime is 2001212019997. The reversal of 2001212019983 is 3899102121002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001212019983 - 2² = 2001212019979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001212019883) 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 3 ways as a sum of consecutive naturals, for example, 90964182716 + ... + 90964182737.

It is an arithmetic number, because the mean of its divisors is an integer number (545785096362).

Almost surely, 2^{2001212019983} is an apocalyptic number.

2001212019983 is a deficient number, since it is larger than the sum of its proper divisors (181928365465).

2001212019983 is a wasteful number, since it uses less digits than its factorization.

2001212019983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181928365464.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 2001212019983 in words is "two trillion, one billion, two hundred twelve million, nineteen thousand, nine hundred eighty-three".