20212020100201 has 4 divisors (see below), whose sum is σ = 20215694350404. Its totient is φ = 20208345850000.

The previous prime is 20212020100187. The next prime is 20212020100231. The reversal of 20212020100201 is 10200102021202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17186629496976 + 3025390603225 = 4145676^2 + 1739365^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212020100201 - 2¹³ = 20212020092009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212020100231) 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, 1837116850 + ... + 1837127851.

It is an arithmetic number, because the mean of its divisors is an integer number (5053923587601).

Almost surely, 2^{20212020100201} is an apocalyptic number.

It is an amenable number.

20212020100201 is a deficient number, since it is larger than the sum of its proper divisors (3674250203).

20212020100201 is an equidigital number, since it uses as much as digits as its factorization.

20212020100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674250202.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20212020100201 its reverse (10200102021202), we get a palindrome (30412122121403).

The spelling of 20212020100201 in words is "twenty trillion, two hundred twelve billion, twenty million, one hundred thousand, two hundred one".