1332301221221 has 2 divisors, whose sum is σ = 1332301221222. Its totient is φ = 1332301221220.

The previous prime is 1332301221211. The next prime is 1332301221257. The reversal of 1332301221221 is 1221221032331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1013014068196 + 319287153025 = 1006486^2 + 565055^2 .

It is a cyclic number.

It is not a de Polignac number, because 1332301221221 - 2³⁰ = 1331227479397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1332301221211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666150610610 + 666150610611.

It is an arithmetic number, because the mean of its divisors is an integer number (666150610611).

Almost surely, 2^{1332301221221} is an apocalyptic number.

It is an amenable number.

1332301221221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332301221221 is an equidigital number, since it uses as much as digits as its factorization.

1332301221221 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 1332301221221 its reverse (1221221032331), we get a palindrome (2553522253552).

The spelling of 1332301221221 in words is "one trillion, three hundred thirty-two billion, three hundred one million, two hundred twenty-one thousand, two hundred twenty-one".