1322130421 has 8 divisors (see below), whose sum is σ = 1347764184. Its totient is φ = 1296522240.

The previous prime is 1322130391. The next prime is 1322130449. The reversal of 1322130421 is 1240312231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 744689521 + 577440900 = 27289^2 + 24030^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1322130421 - 2⁵ = 1322130389 is a prime.

It is a super-3 number, since 3×1322130421³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322130451) by changing a digit.

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, 122941 + ... + 133261.

It is an arithmetic number, because the mean of its divisors is an integer number (168470523).

Almost surely, 2^1322130421 is an apocalyptic number.

It is an amenable number.

1322130421 is a deficient number, since it is larger than the sum of its proper divisors (25633763).

1322130421 is a wasteful number, since it uses less digits than its factorization.

1322130421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12791.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1322130421 is about 36361.1113829047. Note that the first 3 decimals coincide. The cubic root of 1322130421 is about 1097.5511421210.

Adding to 1322130421 its reverse (1240312231), we get a palindrome (2562442652).

The spelling of 1322130421 in words is "one billion, three hundred twenty-two million, one hundred thirty thousand, four hundred twenty-one".