223032010021 has 2 divisors, whose sum is σ = 223032010022. Its totient is φ = 223032010020.

The previous prime is 223032010009. The next prime is 223032010087. The reversal of 223032010021 is 120010230322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151799068996 + 71232941025 = 389614^2 + 266895^2 .

It is a cyclic number.

It is not a de Polignac number, because 223032010021 - 2¹⁵ = 223031977253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223032009977 and 223032010004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223032080021) 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, 111516005010 + 111516005011.

It is an arithmetic number, because the mean of its divisors is an integer number (111516005011).

Almost surely, 2^223032010021 is an apocalyptic number.

It is an amenable number.

223032010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

223032010021 is an equidigital number, since it uses as much as digits as its factorization.

223032010021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 223032010021 its reverse (120010230322), we get a palindrome (343042240343).

The spelling of 223032010021 in words is "two hundred twenty-three billion, thirty-two million, ten thousand, twenty-one".