20001201120201 has 16 divisors (see below), whose sum is σ = 30907288654848. Its totient is φ = 11268282320400.

The previous prime is 20001201120097. The next prime is 20001201120319. The reversal of 20001201120201 is 10202110210002.

It is a de Polignac number, because none of the positive numbers 2^k-20001201120201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20001201120401) 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, 6707309415 + ... + 6707312396.

It is an arithmetic number, because the mean of its divisors is an integer number (1931705540928).

Almost surely, 2^{20001201120201} is an apocalyptic number.

20001201120201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20001201120201 is a deficient number, since it is larger than the sum of its proper divisors (10906087534647).

20001201120201 is a wasteful number, since it uses less digits than its factorization.

20001201120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13414621892.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20001201120201 its reverse (10202110210002), we get a palindrome (30203311330203).

The spelling of 20001201120201 in words is "twenty trillion, one billion, two hundred one million, one hundred twenty thousand, two hundred one".