2021222200201 has 4 divisors (see below), whose sum is σ = 2021860014100. Its totient is φ = 2020584386304.

The previous prime is 2021222200189. The next prime is 2021222200373. The reversal of 2021222200201 is 1020022221202.

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 1794313830400 + 226908369801 = 1339520^2 + 476349^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021222200201 - 2¹⁷ = 2021222069129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021222200601) 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, 318902196 + ... + 318908533.

It is an arithmetic number, because the mean of its divisors is an integer number (505465003525).

Almost surely, 2^{2021222200201} is an apocalyptic number.

It is an amenable number.

2021222200201 is a deficient number, since it is larger than the sum of its proper divisors (637813899).

2021222200201 is an equidigital number, since it uses as much as digits as its factorization.

2021222200201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637813898.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2021222200201 its reverse (1020022221202), we get a palindrome (3041244421403).

It can be divided in two parts, 2021 and 222200201, that added together give a palindrome (222202222).

The spelling of 2021222200201 in words is "two trillion, twenty-one billion, two hundred twenty-two million, two hundred thousand, two hundred one".