1322141021 has 4 divisors (see below), whose sum is σ = 1347087132. Its totient is φ = 1297194912.

The previous prime is 1322141003. The next prime is 1322141047. The reversal of 1322141021 is 1201412231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1201412231 = 2729 ⋅440239.

It can be written as a sum of positive squares in 2 ways, for example, as 421480900 + 900660121 = 20530^2 + 30011^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322141021 - 2⁶ = 1322140957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322141071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12472976 + ... + 12473081.

It is an arithmetic number, because the mean of its divisors is an integer number (336771783).

Almost surely, 2^1322141021 is an apocalyptic number.

It is an amenable number.

1322141021 is a deficient number, since it is larger than the sum of its proper divisors (24946111).

1322141021 is an equidigital number, since it uses as much as digits as its factorization.

1322141021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24946110.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1322141021 is about 36361.2571427337. The cubic root of 1322141021 is about 1097.5540752686.

Adding to 1322141021 its reverse (1201412231), we get a palindrome (2523553252).

The spelling of 1322141021 in words is "one billion, three hundred twenty-two million, one hundred forty-one thousand, twenty-one".