222667333778 has 6 divisors (see below), whose sum is σ = 334002001671. Its totient is φ = 111333333222.

The previous prime is 222667333771. The next prime is 222667333793. The reversal of 222667333778 is 877333766222.

It can be written as a sum of positive squares in only one way, i.e., 111333666889 + 111333666889 = 333667^2 + 333667^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333667.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222667333771) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 500501 + ... + 834167.

Almost surely, 2^222667333778 is an apocalyptic number.

222667333778 is a deficient number, since it is larger than the sum of its proper divisors (111334667893).

222667333778 is an frugal number, since it uses more digits than its factorization.

222667333778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667336 (or 333669 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 56.

The spelling of 222667333778 in words is "two hundred twenty-two billion, six hundred sixty-seven million, three hundred thirty-three thousand, seven hundred seventy-eight".