2221052744 has 8 divisors (see below), whose sum is σ = 4164473910. Its totient is φ = 1110526368.

The previous prime is 2221052719. The next prime is 2221052759. The reversal of 2221052744 is 4472501222.

It can be written as a sum of positive squares in only one way, i.e., 1494750244 + 726302500 = 38662^2 + 26950^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138815789 + ... + 138815804.

Almost surely, 2^2221052744 is an apocalyptic number.

It is an amenable number.

2221052744 is a deficient number, since it is larger than the sum of its proper divisors (1943421166).

2221052744 is a wasteful number, since it uses less digits than its factorization.

2221052744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277631599 (or 277631595 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 2221052744 is about 47128.0462569795. The cubic root of 2221052744 is about 1304.7269225983.

Adding to 2221052744 its reverse (4472501222), we get a palindrome (6693553966).

The spelling of 2221052744 in words is "two billion, two hundred twenty-one million, fifty-two thousand, seven hundred forty-four".