221153452433 has 2 divisors, whose sum is σ = 221153452434. Its totient is φ = 221153452432.

The previous prime is 221153452411. The next prime is 221153452439. The reversal of 221153452433 is 334254351122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216585990544 + 4567461889 = 465388^2 + 67583^2 .

It is a cyclic number.

It is not a de Polignac number, because 221153452433 - 2¹⁸ = 221153190289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221153452393 and 221153452402.

It is not a weakly prime, because it can be changed into another prime (221153452439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110576726216 + 110576726217.

It is an arithmetic number, because the mean of its divisors is an integer number (110576726217).

Almost surely, 2^221153452433 is an apocalyptic number.

It is an amenable number.

221153452433 is a deficient number, since it is larger than the sum of its proper divisors (1).

221153452433 is an equidigital number, since it uses as much as digits as its factorization.

221153452433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 35.

The spelling of 221153452433 in words is "two hundred twenty-one billion, one hundred fifty-three million, four hundred fifty-two thousand, four hundred thirty-three".