1322201213 has 4 divisors (see below), whose sum is σ = 1323204960. Its totient is φ = 1321197468.

The previous prime is 1322201171. The next prime is 1322201239. The reversal of 1322201213 is 3121022231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3121022231 = 17 ⋅183589543.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322201213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1322201191 and 1322201200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322221213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499895 + ... + 502532.

It is an arithmetic number, because the mean of its divisors is an integer number (330801240).

Almost surely, 2^1322201213 is an apocalyptic number.

It is an amenable number.

1322201213 is a deficient number, since it is larger than the sum of its proper divisors (1003747).

1322201213 is a wasteful number, since it uses less digits than its factorization.

1322201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003746.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1322201213 is about 36362.0848274683. The cubic root of 1322201213 is about 1097.5707308224.

Adding to 1322201213 its reverse (3121022231), we get a palindrome (4443223444).

The spelling of 1322201213 in words is "one billion, three hundred twenty-two million, two hundred one thousand, two hundred thirteen".