2021202220201 has 4 divisors (see below), whose sum is σ = 2021381877904. Its totient is φ = 2021022562500.

The previous prime is 2021202220187. The next prime is 2021202220211. The reversal of 2021202220201 is 1020222021202.

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 2021202220201 - 2¹³ = 2021202212009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021202220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89811975 + ... + 89834476.

It is an arithmetic number, because the mean of its divisors is an integer number (505345469476).

Almost surely, 2^{2021202220201} is an apocalyptic number.

It is an amenable number.

2021202220201 is a deficient number, since it is larger than the sum of its proper divisors (179657703).

2021202220201 is a wasteful number, since it uses less digits than its factorization.

2021202220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179657702.

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

Adding to 2021202220201 its reverse (1020222021202), we get a palindrome (3041424241403).

The spelling of 2021202220201 in words is "two trillion, twenty-one billion, two hundred two million, two hundred twenty thousand, two hundred one".