20212021120201 has 4 divisors (see below), whose sum is σ = 20212039059712. Its totient is φ = 20212003180692.

The previous prime is 20212021120183. The next prime is 20212021120223. The reversal of 20212021120201 is 10202112021202.

It is a happy number.

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 20212021120201 - 2²³ = 20212012731593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212021120261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7157721 + ... + 9573766.

It is an arithmetic number, because the mean of its divisors is an integer number (5053009764928).

Almost surely, 2^{20212021120201} is an apocalyptic number.

It is an amenable number.

20212021120201 is a deficient number, since it is larger than the sum of its proper divisors (17939511).

20212021120201 is a wasteful number, since it uses less digits than its factorization.

20212021120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17939510.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20212021120201 its reverse (10202112021202), we get a palindrome (30414133141403).

The spelling of 20212021120201 in words is "twenty trillion, two hundred twelve billion, twenty-one million, one hundred twenty thousand, two hundred one".