2132013221281 has 2 divisors, whose sum is σ = 2132013221282. Its totient is φ = 2132013221280.

The previous prime is 2132013221267. The next prime is 2132013221339. The reversal of 2132013221281 is 1821223102312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1952961530256 + 179051691025 = 1397484^2 + 423145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132013221281 - 2⁷ = 2132013221153 is a prime.

It is a super-2 number, since 2×2132013221281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2132013221881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066006610640 + 1066006610641.

It is an arithmetic number, because the mean of its divisors is an integer number (1066006610641).

Almost surely, 2^{2132013221281} is an apocalyptic number.

It is an amenable number.

2132013221281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132013221281 is an equidigital number, since it uses as much as digits as its factorization.

2132013221281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 2132013221281 its reverse (1821223102312), we get a palindrome (3953236323593).

The spelling of 2132013221281 in words is "two trillion, one hundred thirty-two billion, thirteen million, two hundred twenty-one thousand, two hundred eighty-one".