222313387 has 2 divisors, whose sum is σ = 222313388. Its totient is φ = 222313386.

The previous prime is 222313379. The next prime is 222313393. The reversal of 222313387 is 783313222.

222313387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222313387 - 2³ = 222313379 is a prime.

It is equal to p_12242956 and since 222313387 and 12242956 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (222313687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111156693 + 111156694.

It is an arithmetic number, because the mean of its divisors is an integer number (111156694).

Almost surely, 2^222313387 is an apocalyptic number.

222313387 is a deficient number, since it is larger than the sum of its proper divisors (1).

222313387 is an equidigital number, since it uses as much as digits as its factorization.

222313387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 222313387 is about 14910.1772960619. The cubic root of 222313387 is about 605.7896816509.

The spelling of 222313387 in words is "two hundred twenty-two million, three hundred thirteen thousand, three hundred eighty-seven".