1332232121221 has 2 divisors, whose sum is σ = 1332232121222. Its totient is φ = 1332232121220.

The previous prime is 1332232121191. The next prime is 1332232121243. The reversal of 1332232121221 is 1221212322331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1105883592100 + 226348529121 = 1051610^2 + 475761^2 .

It is a cyclic number.

It is not a de Polignac number, because 1332232121221 - 2¹⁹ = 1332231596933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1332232121291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666116060610 + 666116060611.

It is an arithmetic number, because the mean of its divisors is an integer number (666116060611).

Almost surely, 2^{1332232121221} is an apocalyptic number.

It is an amenable number.

1332232121221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332232121221 is an equidigital number, since it uses as much as digits as its factorization.

1332232121221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

Adding to 1332232121221 its reverse (1221212322331), we get a palindrome (2553444443552).

The spelling of 1332232121221 in words is "one trillion, three hundred thirty-two billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred twenty-one".