20001002210199 has 16 divisors (see below), whose sum is σ = 30133336665600. Its totient is φ = 13108001447448.

The previous prime is 20001002210177. The next prime is 20001002210201. The reversal of 20001002210199 is 99101220010002.

It is not a de Polignac number, because 20001002210199 - 2⁷ = 20001002210071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001002212199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6277776879 + ... + 6277780064.

It is an arithmetic number, because the mean of its divisors is an integer number (1883333541600).

Almost surely, 2^{20001002210199} is an apocalyptic number.

20001002210199 is a deficient number, since it is larger than the sum of its proper divisors (10132334455401).

20001002210199 is a wasteful number, since it uses less digits than its factorization.

20001002210199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12555557011 (or 12555557005 counting only the distinct ones).

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

The spelling of 20001002210199 in words is "twenty trillion, one billion, two million, two hundred ten thousand, one hundred ninety-nine".