1332031121221 has 2 divisors, whose sum is σ = 1332031121222. Its totient is φ = 1332031121220.

The previous prime is 1332031121173. The next prime is 1332031121227. The reversal of 1332031121221 is 1221211302331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1331312130625 + 718990596 = 1153825^2 + 26814^2 .

It is a cyclic number.

It is not a de Polignac number, because 1332031121221 - 2¹¹ = 1332031119173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1332031121192 and 1332031121201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1332031121227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666015560610 + 666015560611.

It is an arithmetic number, because the mean of its divisors is an integer number (666015560611).

Almost surely, 2^{1332031121221} is an apocalyptic number.

It is an amenable number.

1332031121221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332031121221 is an equidigital number, since it uses as much as digits as its factorization.

1332031121221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1332031121221 its reverse (1221211302331), we get a palindrome (2553242423552).

The spelling of 1332031121221 in words is "one trillion, three hundred thirty-two billion, thirty-one million, one hundred twenty-one thousand, two hundred twenty-one".