222123020030321 has 2 divisors, whose sum is σ = 222123020030322. Its totient is φ = 222123020030320.

The previous prime is 222123020030297. The next prime is 222123020030357. The reversal of 222123020030321 is 123030020321222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220832558110096 + 1290461920225 = 14860436^2 + 1135985^2 .

It is a cyclic number.

It is not a de Polignac number, because 222123020030321 - 2³⁰ = 222121946288497 is a prime.

It is not a weakly prime, because it can be changed into another prime (222123020036321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111061510015160 + 111061510015161.

It is an arithmetic number, because the mean of its divisors is an integer number (111061510015161).

Almost surely, 2^{222123020030321} is an apocalyptic number.

It is an amenable number.

222123020030321 is a deficient number, since it is larger than the sum of its proper divisors (1).

222123020030321 is an equidigital number, since it uses as much as digits as its factorization.

222123020030321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 222123020030321 its reverse (123030020321222), we get a palindrome (345153040351543).

The spelling of 222123020030321 in words is "two hundred twenty-two trillion, one hundred twenty-three billion, twenty million, thirty thousand, three hundred twenty-one".