20212021100201 has 4 divisors (see below), whose sum is σ = 23099452685952. Its totient is φ = 17324589514452.

The previous prime is 20212021100171. The next prime is 20212021100209. The reversal of 20212021100201 is 10200112021202.

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 20212021100201 - 2⁶ = 20212021100137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212021100209) 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, 1443715792865 + ... + 1443715792878.

It is an arithmetic number, because the mean of its divisors is an integer number (5774863171488).

Almost surely, 2^{20212021100201} is an apocalyptic number.

It is an amenable number.

20212021100201 is a deficient number, since it is larger than the sum of its proper divisors (2887431585751).

20212021100201 is an equidigital number, since it uses as much as digits as its factorization.

20212021100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887431585750.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20212021100201 its reverse (10200112021202), we get a palindrome (30412133121403).

The spelling of 20212021100201 in words is "twenty trillion, two hundred twelve billion, twenty-one million, one hundred thousand, two hundred one".