20001201011199 has 8 divisors (see below), whose sum is σ = 29631408905520. Its totient is φ = 13334134007448.

The previous prime is 20001201011191. The next prime is 20001201011213. The reversal of 20001201011199 is 99111010210002.

It is not a de Polignac number, because 20001201011199 - 2³ = 20001201011191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 740785222637 = 20001201011199 / (2 + 0 + 0 + 0 + 1 + 2 + 0 + 1 + 0 + 1 + 1 + 1 + 9 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001201011191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370392611292 + ... + 370392611345.

It is an arithmetic number, because the mean of its divisors is an integer number (3703926113190).

Almost surely, 2^{20001201011199} is an apocalyptic number.

20001201011199 is a deficient number, since it is larger than the sum of its proper divisors (9630207894321).

20001201011199 is an equidigital number, since it uses as much as digits as its factorization.

20001201011199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740785222646 (or 740785222640 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 20001201011199 in words is "twenty trillion, one billion, two hundred one million, eleven thousand, one hundred ninety-nine".