222001320187 has 2 divisors, whose sum is σ = 222001320188. Its totient is φ = 222001320186.

The previous prime is 222001320143. The next prime is 222001320221. The reversal of 222001320187 is 781023100222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222001320187 is a prime.

It is not a weakly prime, because it can be changed into another prime (222001320127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000660093 + 111000660094.

It is an arithmetic number, because the mean of its divisors is an integer number (111000660094).

Almost surely, 2^222001320187 is an apocalyptic number.

222001320187 is a deficient number, since it is larger than the sum of its proper divisors (1).

222001320187 is an equidigital number, since it uses as much as digits as its factorization.

222001320187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 222001320187 in words is "two hundred twenty-two billion, one million, three hundred twenty thousand, one hundred eighty-seven".