222120121021193 has 2 divisors, whose sum is σ = 222120121021194. Its totient is φ = 222120121021192.

The previous prime is 222120121021187. The next prime is 222120121021313. The reversal of 222120121021193 is 391120121021222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150023498534464 + 72096622486729 = 12248408^2 + 8490973^2 .

It is a cyclic number.

It is not a de Polignac number, because 222120121021193 - 2⁴ = 222120121021177 is a prime.

It is not a weakly prime, because it can be changed into another prime (222120121021133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060060510596 + 111060060510597.

It is an arithmetic number, because the mean of its divisors is an integer number (111060060510597).

Almost surely, 2^{222120121021193} is an apocalyptic number.

It is an amenable number.

222120121021193 is a deficient number, since it is larger than the sum of its proper divisors (1).

222120121021193 is an equidigital number, since it uses as much as digits as its factorization.

222120121021193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 222120121021193 its sum of digits (29), we get a palindrome (222120121021222).

The spelling of 222120121021193 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred twenty-one million, twenty-one thousand, one hundred ninety-three".