1322023311221 has 2 divisors, whose sum is σ = 1322023311222. Its totient is φ = 1322023311220.

The previous prime is 1322023311173. The next prime is 1322023311283. The reversal of 1322023311221 is 1221133202231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1313189943025 + 8833368196 = 1145945^2 + 93986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322023311221 - 2¹⁸ = 1322023049077 is a prime.

It is a super-4 number, since 4×1322023311221⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322023317221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661011655610 + 661011655611.

It is an arithmetic number, because the mean of its divisors is an integer number (661011655611).

Almost surely, 2^{1322023311221} is an apocalyptic number.

It is an amenable number.

1322023311221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322023311221 is an equidigital number, since it uses as much as digits as its factorization.

1322023311221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1322023311221 its reverse (1221133202231), we get a palindrome (2543156513452).

The spelling of 1322023311221 in words is "one trillion, three hundred twenty-two billion, twenty-three million, three hundred eleven thousand, two hundred twenty-one".