611021522213 has 2 divisors, whose sum is σ = 611021522214. Its totient is φ = 611021522212.

The previous prime is 611021522201. The next prime is 611021522219. The reversal of 611021522213 is 312225120116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 591494813569 + 19526708644 = 769087^2 + 139738^2 .

It is a cyclic number.

It is not a de Polignac number, because 611021522213 - 2³⁰ = 609947780389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611021522219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305510761106 + 305510761107.

It is an arithmetic number, because the mean of its divisors is an integer number (305510761107).

Almost surely, 2^611021522213 is an apocalyptic number.

It is an amenable number.

611021522213 is a deficient number, since it is larger than the sum of its proper divisors (1).

611021522213 is an equidigital number, since it uses as much as digits as its factorization.

611021522213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 611021522213 its reverse (312225120116), we get a palindrome (923246642329).

The spelling of 611021522213 in words is "six hundred eleven billion, twenty-one million, five hundred twenty-two thousand, two hundred thirteen".