20010210201999 has 24 divisors (see below), whose sum is σ = 28993696804800. Its totient is φ = 13298593154112.

The previous prime is 20010210201983. The next prime is 20010210202061. The reversal of 20010210201999 is 99910201201002.

It is not a de Polignac number, because 20010210201999 - 2⁴ = 20010210201983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010210201929) 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, 11811082 + ... + 13398584.

It is an arithmetic number, because the mean of its divisors is an integer number (1208070700200).

Almost surely, 2^{20010210201999} is an apocalyptic number.

20010210201999 is a deficient number, since it is larger than the sum of its proper divisors (8983486602801).

20010210201999 is a wasteful number, since it uses less digits than its factorization.

20010210201999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591871 (or 1591868 counting only the distinct ones).

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

The spelling of 20010210201999 in words is "twenty trillion, ten billion, two hundred ten million, two hundred one thousand, nine hundred ninety-nine".