222774166 has 4 divisors (see below), whose sum is σ = 334161252. Its totient is φ = 111387082.

The previous prime is 222774163. The next prime is 222774169. The reversal of 222774166 is 661477222.

222774166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (222774163) and next prime (222774169).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222774161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55693540 + ... + 55693543.

It is an arithmetic number, because the mean of its divisors is an integer number (83540313).

Almost surely, 2^222774166 is an apocalyptic number.

222774166 is a deficient number, since it is larger than the sum of its proper divisors (111387086).

222774166 is a wasteful number, since it uses less digits than its factorization.

222774166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111387085.

The product of its digits is 56448, while the sum is 37.

The square root of 222774166 is about 14925.6211261039. The cubic root of 222774166 is about 606.2079238733.

The spelling of 222774166 in words is "two hundred twenty-two million, seven hundred seventy-four thousand, one hundred sixty-six".