222775156 has 6 divisors (see below), whose sum is σ = 389856530. Its totient is φ = 111387576.

The previous prime is 222775153. The next prime is 222775169. The reversal of 222775156 is 651577222.

It can be written as a sum of positive squares in only one way, i.e., 194323600 + 28451556 = 13940^2 + 5334^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222775151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27846891 + ... + 27846898.

Almost surely, 2^222775156 is an apocalyptic number.

It is an amenable number.

222775156 is a deficient number, since it is larger than the sum of its proper divisors (167081374).

222775156 is a wasteful number, since it uses less digits than its factorization.

222775156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55693793 (or 55693791 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 222775156 is about 14925.6542905160. The cubic root of 222775156 is about 606.2088218604.

The spelling of 222775156 in words is "two hundred twenty-two million, seven hundred seventy-five thousand, one hundred fifty-six".