321221232112049 has 2 divisors, whose sum is σ = 321221232112050. Its totient is φ = 321221232112048.

The previous prime is 321221232112037. The next prime is 321221232112147. The reversal of 321221232112049 is 940211232122123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306216400921600 + 15004831190449 = 17499040^2 + 3873607^2 .

It is a cyclic number.

It is not a de Polignac number, because 321221232112049 - 2⁴⁰ = 320121720484273 is a prime.

It is a super-2 number, since 2×321221232112049² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (321221232112009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160610616056024 + 160610616056025.

It is an arithmetic number, because the mean of its divisors is an integer number (160610616056025).

Almost surely, 2^{321221232112049} is an apocalyptic number.

It is an amenable number.

321221232112049 is a deficient number, since it is larger than the sum of its proper divisors (1).

321221232112049 is an equidigital number, since it uses as much as digits as its factorization.

321221232112049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 321221232112049 in words is "three hundred twenty-one trillion, two hundred twenty-one billion, two hundred thirty-two million, one hundred twelve thousand, forty-nine".