2021238226 has 32 divisors (see below), whose sum is σ = 3514775040. Its totient is φ = 853834176.

The previous prime is 2021238217. The next prime is 2021238227. The reversal of 2021238226 is 6228321202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2021238194 and 2021238203.

It is not an unprimeable number, because it can be changed into a prime (2021238227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880336 + ... + 882628.

It is an arithmetic number, because the mean of its divisors is an integer number (109836720).

Almost surely, 2^2021238226 is an apocalyptic number.

2021238226 is a deficient number, since it is larger than the sum of its proper divisors (1493536814).

2021238226 is a wasteful number, since it uses less digits than its factorization.

2021238226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2021238226 is about 44958.1830816149. The cubic root of 2021238226 is about 1264.3651041820.

Adding to 2021238226 its reverse (6228321202), we get a palindrome (8249559428).

The spelling of 2021238226 in words is "two billion, twenty-one million, two hundred thirty-eight thousand, two hundred twenty-six".