53222822221 has 2 divisors, whose sum is σ = 53222822222. Its totient is φ = 53222822220.

The previous prime is 53222822207. The next prime is 53222822239. The reversal of 53222822221 is 12222822235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52070219721 + 1152602500 = 228189^2 + 33950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53222822221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53222822321) 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, 26611411110 + 26611411111.

It is an arithmetic number, because the mean of its divisors is an integer number (26611411111).

Almost surely, 2^53222822221 is an apocalyptic number.

It is an amenable number.

53222822221 is a deficient number, since it is larger than the sum of its proper divisors (1).

53222822221 is an equidigital number, since it uses as much as digits as its factorization.

53222822221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 31.

The spelling of 53222822221 in words is "fifty-three billion, two hundred twenty-two million, eight hundred twenty-two thousand, two hundred twenty-one".