20211212212201 has 8 divisors (see below), whose sum is σ = 20542774464000. Its totient is φ = 19879657409040.

The previous prime is 20211212212199. The next prime is 20211212212241. The reversal of 20211212212201 is 10221221211202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20211212212201 - 2¹ = 20211212212199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211212212241) 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, 3746610 + ... + 7379668.

It is an arithmetic number, because the mean of its divisors is an integer number (2567846808000).

Almost surely, 2^{20211212212201} is an apocalyptic number.

It is an amenable number.

20211212212201 is a deficient number, since it is larger than the sum of its proper divisors (331562251799).

20211212212201 is an equidigital number, since it uses as much as digits as its factorization.

20211212212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724319.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20211212212201 its reverse (10221221211202), we get a palindrome (30432433423403).

The spelling of 20211212212201 in words is "twenty trillion, two hundred eleven billion, two hundred twelve million, two hundred twelve thousand, two hundred one".