223250965621 has 2 divisors, whose sum is σ = 223250965622. Its totient is φ = 223250965620.

The previous prime is 223250965607. The next prime is 223250965667. The reversal of 223250965621 is 126569052322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113308984996 + 109941980625 = 336614^2 + 331575^2 .

It is a cyclic number.

It is not a de Polignac number, because 223250965621 - 2⁹ = 223250965109 is a prime.

It is a super-3 number, since 3×223250965621³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223250965601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111625482810 + 111625482811.

It is an arithmetic number, because the mean of its divisors is an integer number (111625482811).

Almost surely, 2^223250965621 is an apocalyptic number.

It is an amenable number.

223250965621 is a deficient number, since it is larger than the sum of its proper divisors (1).

223250965621 is an equidigital number, since it uses as much as digits as its factorization.

223250965621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 223250965621 in words is "two hundred twenty-three billion, two hundred fifty million, nine hundred sixty-five thousand, six hundred twenty-one".