222045287 has 2 divisors, whose sum is σ = 222045288. Its totient is φ = 222045286.

The previous prime is 222045277. The next prime is 222045389. The reversal of 222045287 is 782540222.

222045287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222045287 - 2¹² = 222041191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222045227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111022643 + 111022644.

It is an arithmetic number, because the mean of its divisors is an integer number (111022644).

Almost surely, 2^222045287 is an apocalyptic number.

222045287 is a deficient number, since it is larger than the sum of its proper divisors (1).

222045287 is an equidigital number, since it uses as much as digits as its factorization.

222045287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 222045287 is about 14901.1840804682. The cubic root of 222045287 is about 605.5460652754.

The spelling of 222045287 in words is "two hundred twenty-two million, forty-five thousand, two hundred eighty-seven".