20211201211201 has 16 divisors (see below), whose sum is σ = 27136717711488. Its totient is φ = 14537527344000.

The previous prime is 20211201211177. The next prime is 20211201211261. The reversal of 20211201211201 is 10211210211202.

It is a cyclic number.

It is not a de Polignac number, because 20211201211201 - 2⁵ = 20211201211169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211201211261) 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, 10095504100 + ... + 10095506101.

It is an arithmetic number, because the mean of its divisors is an integer number (1696044856968).

Almost surely, 2^{20211201211201} is an apocalyptic number.

It is an amenable number.

20211201211201 is a deficient number, since it is larger than the sum of its proper divisors (6925516500287).

20211201211201 is a wasteful number, since it uses less digits than its factorization.

20211201211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20191010232.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20211201211201 its reverse (10211210211202), we get a palindrome (30422411422403).

Subtracting from 20211201211201 its reverse (10211210211202), we obtain a palindrome (9999990999999).

It can be divided in two parts, 20211201 and 211201, that added together give a palindrome (20422402).

The spelling of 20211201211201 in words is "twenty trillion, two hundred eleven billion, two hundred one million, two hundred eleven thousand, two hundred one".