1322213231021 has 2 divisors, whose sum is σ = 1322213231022. Its totient is φ = 1322213231020.

The previous prime is 1322213230993. The next prime is 1322213231029. The reversal of 1322213231021 is 1201323122231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1267977342025 + 54235888996 = 1126045^2 + 232886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322213231021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322213231029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661106615510 + 661106615511.

It is an arithmetic number, because the mean of its divisors is an integer number (661106615511).

Almost surely, 2^{1322213231021} is an apocalyptic number.

It is an amenable number.

1322213231021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322213231021 is an equidigital number, since it uses as much as digits as its factorization.

1322213231021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1322213231021 its reverse (1201323122231), we get a palindrome (2523536353252).

The spelling of 1322213231021 in words is "one trillion, three hundred twenty-two billion, two hundred thirteen million, two hundred thirty-one thousand, twenty-one".