23225453221 has 2 divisors, whose sum is σ = 23225453222. Its totient is φ = 23225453220.

The previous prime is 23225453219. The next prime is 23225453231. The reversal of 23225453221 is 12235452232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15033212100 + 8192241121 = 122610^2 + 90511^2 .

It is a cyclic number.

It is not a de Polignac number, because 23225453221 - 2¹ = 23225453219 is a prime.

Together with 23225453219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23225453231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11612726610 + 11612726611.

It is an arithmetic number, because the mean of its divisors is an integer number (11612726611).

Almost surely, 2^23225453221 is an apocalyptic number.

It is an amenable number.

23225453221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23225453221 is an equidigital number, since it uses as much as digits as its factorization.

23225453221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 31.

The spelling of 23225453221 in words is "twenty-three billion, two hundred twenty-five million, four hundred fifty-three thousand, two hundred twenty-one".