2021224244 has 24 divisors (see below), whose sum is σ = 3810610440. Its totient is φ = 932534784.

The previous prime is 2021224193. The next prime is 2021224259. The reversal of 2021224244 is 4424221202.

It can be written as a sum of positive squares in 4 ways, for example, as 214974244 + 1806250000 = 14662^2 + 42500^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190832 + ... + 201144.

It is an arithmetic number, because the mean of its divisors is an integer number (158775435).

Almost surely, 2^2021224244 is an apocalyptic number.

It is an amenable number.

2021224244 is a deficient number, since it is larger than the sum of its proper divisors (1789386196).

2021224244 is a wasteful number, since it uses less digits than its factorization.

2021224244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14099 (or 14097 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 2021224244 is about 44958.0275812896. The cubic root of 2021224244 is about 1264.3621887425.

Adding to 2021224244 its reverse (4424221202), we get a palindrome (6445445446).

The spelling of 2021224244 in words is "two billion, twenty-one million, two hundred twenty-four thousand, two hundred forty-four".