2021322044 has 24 divisors (see below), whose sum is σ = 4128660480. Its totient is φ = 847848816.

The previous prime is 2021322029. The next prime is 2021322059. The reversal of 2021322044 is 4402231202.

It is an interprime number because it is at equal distance from previous prime (2021322029) and next prime (2021322059).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 766664 + ... + 769295.

It is an arithmetic number, because the mean of its divisors is an integer number (172027520).

Almost surely, 2^2021322044 is an apocalyptic number.

It is an amenable number.

2021322044 is an abundant number, since it is smaller than the sum of its proper divisors (2107338436).

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

2021322044 is a wasteful number, since it uses less digits than its factorization.

2021322044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536017 (or 1536015 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2021322044 is about 44959.1152493018. The cubic root of 2021322044 is about 1264.3825811075.

Adding to 2021322044 its reverse (4402231202), we get a palindrome (6423553246).

The spelling of 2021322044 in words is "two billion, twenty-one million, three hundred twenty-two thousand, forty-four".