1322121293 has 2 divisors, whose sum is σ = 1322121294. Its totient is φ = 1322121292.

The previous prime is 1322121257. The next prime is 1322121319. The reversal of 1322121293 is 3921212231.

It is an a-pointer prime, because the next prime (1322121319) can be obtained adding 1322121293 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 875982409 + 446138884 = 29597^2 + 21122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322121293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322123293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661060646 + 661060647.

It is an arithmetic number, because the mean of its divisors is an integer number (661060647).

Almost surely, 2^1322121293 is an apocalyptic number.

It is an amenable number.

1322121293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322121293 is an equidigital number, since it uses as much as digits as its factorization.

1322121293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 1322121293 is about 36360.9858639724. The cubic root of 1322121293 is about 1097.5486162810.

The spelling of 1322121293 in words is "one billion, three hundred twenty-two million, one hundred twenty-one thousand, two hundred ninety-three".