223076072672021 has 2 divisors, whose sum is σ = 223076072672022. Its totient is φ = 223076072672020.

The previous prime is 223076072672017. The next prime is 223076072672053. The reversal of 223076072672021 is 120276270670322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222750819175921 + 325253496100 = 14924839^2 + 570310^2 .

It is a cyclic number.

It is not a de Polignac number, because 223076072672021 - 2² = 223076072672017 is a prime.

It is a super-3 number, since 3×223076072672021³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223076072675021) 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, 111538036336010 + 111538036336011.

It is an arithmetic number, because the mean of its divisors is an integer number (111538036336011).

Almost surely, 2^{223076072672021} is an apocalyptic number.

It is an amenable number.

223076072672021 is a deficient number, since it is larger than the sum of its proper divisors (1).

223076072672021 is an equidigital number, since it uses as much as digits as its factorization.

223076072672021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 223076072672021 in words is "two hundred twenty-three trillion, seventy-six billion, seventy-two million, six hundred seventy-two thousand, twenty-one".