1322220131309 has 16 divisors (see below), whose sum is σ = 1648514077056. Its totient is φ = 1030281504000.

The previous prime is 1322220131279. The next prime is 1322220131327. The reversal of 1322220131309 is 9031310222231.

It is a de Polignac number, because none of the positive numbers 2^k-1322220131309 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322220131909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4811009 + ... + 5078409.

It is an arithmetic number, because the mean of its divisors is an integer number (103032129816).

Almost surely, 2^{1322220131309} is an apocalyptic number.

It is an amenable number.

1322220131309 is a deficient number, since it is larger than the sum of its proper divisors (326293945747).

1322220131309 is a wasteful number, since it uses less digits than its factorization.

1322220131309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331636.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 1322220131309 in words is "one trillion, three hundred twenty-two billion, two hundred twenty million, one hundred thirty-one thousand, three hundred nine".