2021228330 has 64 divisors (see below), whose sum is σ = 4076683776. Its totient is φ = 715176000.

The previous prime is 2021228327. The next prime is 2021228333. The reversal of 2021228330 is 338221202.

It is an interprime number because it is at equal distance from previous prime (2021228327) and next prime (2021228333).

It is a junction number, because it is equal to n+sod(n) for n = 2021228296 and 2021228305.

It is not an unprimeable number, because it can be changed into a prime (2021228333) 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 31 ways as a sum of consecutive naturals, for example, 1564985 + ... + 1566275.

It is an arithmetic number, because the mean of its divisors is an integer number (63698184).

Almost surely, 2^2021228330 is an apocalyptic number.

2021228330 is an abundant number, since it is smaller than the sum of its proper divisors (2055455446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021228330 is a wasteful number, since it uses less digits than its factorization.

2021228330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2021228330 is about 44958.0730236517. The cubic root of 2021228330 is about 1264.3630407311.

Adding to 2021228330 its reverse (338221202), we get a palindrome (2359449532).

The spelling of 2021228330 in words is "two billion, twenty-one million, two hundred twenty-eight thousand, three hundred thirty".