1353529488221 has 2 divisors, whose sum is σ = 1353529488222. Its totient is φ = 1353529488220.

The previous prime is 1353529488149. The next prime is 1353529488229. The reversal of 1353529488221 is 1228849253531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1353022608025 + 506880196 = 1163195^2 + 22514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1353529488221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1353529488229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676764744110 + 676764744111.

It is an arithmetic number, because the mean of its divisors is an integer number (676764744111).

Almost surely, 2^{1353529488221} is an apocalyptic number.

It is an amenable number.

1353529488221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353529488221 is an equidigital number, since it uses as much as digits as its factorization.

1353529488221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4147200, while the sum is 53.

The spelling of 1353529488221 in words is "one trillion, three hundred fifty-three billion, five hundred twenty-nine million, four hundred eighty-eight thousand, two hundred twenty-one".