202224222021 has 4 divisors (see below), whose sum is σ = 269632296032. Its totient is φ = 134816148012.

The previous prime is 202224222019. The next prime is 202224222029. The reversal of 202224222021 is 120222422202.

It is a happy number.

202224222021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 202224222021 - 2¹ = 202224222019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202224222029) 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, 33704037001 + ... + 33704037006.

It is an arithmetic number, because the mean of its divisors is an integer number (67408074008).

Almost surely, 2^202224222021 is an apocalyptic number.

It is an amenable number.

202224222021 is a deficient number, since it is larger than the sum of its proper divisors (67408074011).

202224222021 is an equidigital number, since it uses as much as digits as its factorization.

202224222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67408074010.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 202224222021 its reverse (120222422202), we get a palindrome (322446644223).

The spelling of 202224222021 in words is "two hundred two billion, two hundred twenty-four million, two hundred twenty-two thousand, twenty-one".