1322200123121 has 2 divisors, whose sum is σ = 1322200123122. Its totient is φ = 1322200123120.

The previous prime is 1322200123091. The next prime is 1322200123157. The reversal of 1322200123121 is 1213210022231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1026442528225 + 295757594896 = 1013135^2 + 543836^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322200123121 - 2¹⁰ = 1322200122097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1322200123093 and 1322200123102.

It is not a weakly prime, because it can be changed into another prime (1322200122121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661100061560 + 661100061561.

It is an arithmetic number, because the mean of its divisors is an integer number (661100061561).

Almost surely, 2^{1322200123121} is an apocalyptic number.

It is an amenable number.

1322200123121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322200123121 is an equidigital number, since it uses as much as digits as its factorization.

1322200123121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1322200123121 its reverse (1213210022231), we get a palindrome (2535410145352).

The spelling of 1322200123121 in words is "one trillion, three hundred twenty-two billion, two hundred million, one hundred twenty-three thousand, one hundred twenty-one".