1322131121021 has 2 divisors, whose sum is σ = 1322131121022. Its totient is φ = 1322131121020.

The previous prime is 1322131120979. The next prime is 1322131121081. The reversal of 1322131121021 is 1201211312231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 749254704025 + 572876416996 = 865595^2 + 756886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322131121021 - 2²² = 1322126926717 is a prime.

It is a super-3 number, since 3×1322131121021³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1322131120984 and 1322131121002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322131121081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661065560510 + 661065560511.

It is an arithmetic number, because the mean of its divisors is an integer number (661065560511).

Almost surely, 2^{1322131121021} is an apocalyptic number.

It is an amenable number.

1322131121021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322131121021 is an equidigital number, since it uses as much as digits as its factorization.

1322131121021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1322131121021 its reverse (1201211312231), we get a palindrome (2523342433252).

The spelling of 1322131121021 in words is "one trillion, three hundred twenty-two billion, one hundred thirty-one million, one hundred twenty-one thousand, twenty-one".