1171217222 has 8 divisors (see below), whose sum is σ = 2007800976. Its totient is φ = 501950232.

The previous prime is 1171217221. The next prime is 1171217237. The reversal of 1171217222 is 2227121711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1171217222² = 2743499562218794568, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1171217191 and 1171217200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171217221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41829173 + ... + 41829200.

It is an arithmetic number, because the mean of its divisors is an integer number (250975122).

Almost surely, 2^1171217222 is an apocalyptic number.

1171217222 is a deficient number, since it is larger than the sum of its proper divisors (836583754).

1171217222 is an equidigital number, since it uses as much as digits as its factorization.

1171217222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83658382.

The product of its digits is 784, while the sum is 26.

The square root of 1171217222 is about 34223.0510328930. The cubic root of 1171217222 is about 1054.0935355254.

Adding to 1171217222 its reverse (2227121711), we get a palindrome (3398338933).

The spelling of 1171217222 in words is "one billion, one hundred seventy-one million, two hundred seventeen thousand, two hundred twenty-two".