20211212220301 has 4 divisors (see below), whose sum is σ = 20211238583104. Its totient is φ = 20211185857500.

The previous prime is 20211212220247. The next prime is 20211212220341. The reversal of 20211212220301 is 10302221211202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20211212220301 - 2²⁵ = 20211178665869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211212220341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11995875 + ... + 13576576.

It is an arithmetic number, because the mean of its divisors is an integer number (5052809645776).

Almost surely, 2^{20211212220301} is an apocalyptic number.

It is an amenable number.

20211212220301 is a deficient number, since it is larger than the sum of its proper divisors (26362803).

20211212220301 is an equidigital number, since it uses as much as digits as its factorization.

20211212220301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26362802.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20211212220301 its reverse (10302221211202), we get a palindrome (30513433431503).

The spelling of 20211212220301 in words is "twenty trillion, two hundred eleven billion, two hundred twelve million, two hundred twenty thousand, three hundred one".