222120130321 has 2 divisors, whose sum is σ = 222120130322. Its totient is φ = 222120130320.

The previous prime is 222120130313. The next prime is 222120130339. The reversal of 222120130321 is 123031021222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167334174225 + 54785956096 = 409065^2 + 234064^2 .

It is a cyclic number.

It is not a de Polignac number, because 222120130321 - 2³ = 222120130313 is a prime.

It is not a weakly prime, because it can be changed into another prime (222120130381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060065160 + 111060065161.

It is an arithmetic number, because the mean of its divisors is an integer number (111060065161).

Almost surely, 2^222120130321 is an apocalyptic number.

It is an amenable number.

222120130321 is a deficient number, since it is larger than the sum of its proper divisors (1).

222120130321 is an equidigital number, since it uses as much as digits as its factorization.

222120130321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 222120130321 its reverse (123031021222), we get a palindrome (345151151543).

It can be divided in two parts, 2221201 and 30321, that added together give a palindrome (2251522).

The spelling of 222120130321 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred thirty thousand, three hundred twenty-one".