222320144987 has 2 divisors, whose sum is σ = 222320144988. Its totient is φ = 222320144986.

The previous prime is 222320144953. The next prime is 222320144989. The reversal of 222320144987 is 789441023222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222320144987 - 2⁶ = 222320144923 is a prime.

Together with 222320144989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222320144989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160072493 + 111160072494.

It is an arithmetic number, because the mean of its divisors is an integer number (111160072494).

Almost surely, 2^222320144987 is an apocalyptic number.

222320144987 is a deficient number, since it is larger than the sum of its proper divisors (1).

222320144987 is an equidigital number, since it uses as much as digits as its factorization.

222320144987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 222320144987 in words is "two hundred twenty-two billion, three hundred twenty million, one hundred forty-four thousand, nine hundred eighty-seven".