1322020225 has 12 divisors (see below), whose sum is σ = 1639766700. Its totient is φ = 1057318400.

The previous prime is 1322020211. The next prime is 1322020229. The reversal of 1322020225 is 5220202231.

It can be written as a sum of positive squares in 6 ways, for example, as 20903184 + 1301117041 = 4572^2 + 36071^2 .

It is not a de Polignac number, because 1322020225 - 2⁷ = 1322020097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1322020229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141705 + ... + 150745.

It is an arithmetic number, because the mean of its divisors is an integer number (136647225).

Almost surely, 2^1322020225 is an apocalyptic number.

It is an amenable number.

1322020225 is a deficient number, since it is larger than the sum of its proper divisors (317746475).

1322020225 is an equidigital number, since it uses as much as digits as its factorization.

1322020225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14900 (or 14895 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1322020225 is about 36359.5960511115. The cubic root of 1322020225 is about 1097.5206486326.

Adding to 1322020225 its reverse (5220202231), we get a palindrome (6542222456).

The spelling of 1322020225 in words is "one billion, three hundred twenty-two million, twenty thousand, two hundred twenty-five".