2221205024 has 12 divisors (see below), whose sum is σ = 4372997454. Its totient is φ = 1110602496.

The previous prime is 2221204987. The next prime is 2221205027. The reversal of 2221205024 is 4205021222.

It can be written as a sum of positive squares in only one way, i.e., 1947633424 + 273571600 = 44132^2 + 16540^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2221204987 and 2221205005.

It is not an unprimeable number, because it can be changed into a prime (2221205027) by changing a digit.

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, 34706297 + ... + 34706360.

Almost surely, 2^2221205024 is an apocalyptic number.

It is an amenable number.

2221205024 is a deficient number, since it is larger than the sum of its proper divisors (2151792430).

2221205024 is an equidigital number, since it uses as much as digits as its factorization.

2221205024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69412667 (or 69412659 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2221205024 is about 47129.6618277704. The cubic root of 2221205024 is about 1304.7567401815.

Adding to 2221205024 its reverse (4205021222), we get a palindrome (6426226246).

The spelling of 2221205024 in words is "two billion, two hundred twenty-one million, two hundred five thousand, twenty-four".