1322121013 has 2 divisors, whose sum is σ = 1322121014. Its totient is φ = 1322121012.

The previous prime is 1322120977. The next prime is 1322121041. The reversal of 1322121013 is 3101212231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 970820964 + 351300049 = 31158^2 + 18743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322121013 is a prime.

It is a super-2 number, since 2×1322121013² = 3496007946032292338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322121083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661060506 + 661060507.

It is an arithmetic number, because the mean of its divisors is an integer number (661060507).

Almost surely, 2^1322121013 is an apocalyptic number.

It is an amenable number.

1322121013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322121013 is an equidigital number, since it uses as much as digits as its factorization.

1322121013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1322121013 is about 36360.9820136915. The cubic root of 1322121013 is about 1097.5485388011.

Adding to 1322121013 its reverse (3101212231), we get a palindrome (4423333244).

It can be divided in two parts, 132212 and 1013, that added together give a square (133225 = 365²).

The spelling of 1322121013 in words is "one billion, three hundred twenty-two million, one hundred twenty-one thousand, thirteen".