452522222021 has 2 divisors, whose sum is σ = 452522222022. Its totient is φ = 452522222020.

The previous prime is 452522221999. The next prime is 452522222041. The reversal of 452522222021 is 120222225254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282189376225 + 170332845796 = 531215^2 + 412714^2 .

It is a cyclic number.

It is not a de Polignac number, because 452522222021 - 2³⁸ = 177644315077 is a prime.

It is a super-2 number, since 2×452522222021² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452522222041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226261111010 + 226261111011.

It is an arithmetic number, because the mean of its divisors is an integer number (226261111011).

Almost surely, 2^452522222021 is an apocalyptic number.

It is an amenable number.

452522222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

452522222021 is an equidigital number, since it uses as much as digits as its factorization.

452522222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 452522222021 its reverse (120222225254), we get a palindrome (572744447275).

The spelling of 452522222021 in words is "four hundred fifty-two billion, five hundred twenty-two million, two hundred twenty-two thousand, twenty-one".