20001020210199 has 48 divisors (see below), whose sum is σ = 35876462868480. Its totient is φ = 10478341880640.

The previous prime is 20001020210191. The next prime is 20001020210203. The reversal of 20001020210199 is 99101202010002.

It is not a de Polignac number, because 20001020210199 - 2³ = 20001020210191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001020210191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269467572 + ... + 269541785.

It is an arithmetic number, because the mean of its divisors is an integer number (747426309760).

Almost surely, 2^{20001020210199} is an apocalyptic number.

20001020210199 is a deficient number, since it is larger than the sum of its proper divisors (15875442658281).

20001020210199 is a wasteful number, since it uses less digits than its factorization.

20001020210199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539009420 (or 539009417 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 20001020210199 in words is "twenty trillion, one billion, twenty million, two hundred ten thousand, one hundred ninety-nine".