1322220131279 has 2 divisors, whose sum is σ = 1322220131280. Its totient is φ = 1322220131278.

The previous prime is 1322220131263. The next prime is 1322220131327. The reversal of 1322220131279 is 9721310222231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1322220131279 - 2⁴ = 1322220131263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322220131249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661110065639 + 661110065640.

It is an arithmetic number, because the mean of its divisors is an integer number (661110065640).

Almost surely, 2^{1322220131279} is an apocalyptic number.

1322220131279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322220131279 is an equidigital number, since it uses as much as digits as its factorization.

1322220131279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 1322220131279 in words is "one trillion, three hundred twenty-two billion, two hundred twenty million, one hundred thirty-one thousand, two hundred seventy-nine".