2001210210999 has 24 divisors (see below), whose sum is σ = 2911376856960. Its totient is φ = 1324596170688.

The previous prime is 2001210210889. The next prime is 2001210211001. The reversal of 2001210210999 is 9990120121002.

It is not a de Polignac number, because 2001210210999 - 2¹⁶ = 2001210145463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001210210199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328932 + ... + 2027465.

It is an arithmetic number, because the mean of its divisors is an integer number (121307369040).

Almost surely, 2^{2001210210999} is an apocalyptic number.

2001210210999 is a deficient number, since it is larger than the sum of its proper divisors (910166645961).

2001210210999 is a wasteful number, since it uses less digits than its factorization.

2001210210999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357079 (or 2357076 counting only the distinct ones).

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

The spelling of 2001210210999 in words is "two trillion, one billion, two hundred ten million, two hundred ten thousand, nine hundred ninety-nine".