1171221319 has 8 divisors (see below), whose sum is σ = 1176988032. Its totient is φ = 1165465080.

The previous prime is 1171221301. The next prime is 1171221329. The reversal of 1171221319 is 9131221711.

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

It is a cyclic number.

It is not a de Polignac number, because 1171221319 - 2⁵ = 1171221287 is a prime.

It is a super-2 number, since 2×1171221319² = 2743518756160199522, which contains 22 as substring.

It is a Duffinian number.

1171221319 is a modest number, since divided by 221319 gives 1171 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171221329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306072 + ... + 309874.

It is an arithmetic number, because the mean of its divisors is an integer number (147123504).

Almost surely, 2^1171221319 is an apocalyptic number.

1171221319 is a deficient number, since it is larger than the sum of its proper divisors (5766713).

1171221319 is a wasteful number, since it uses less digits than its factorization.

1171221319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237.

The product of its digits is 756, while the sum is 28.

The square root of 1171221319 is about 34223.1108901573. The cubic root of 1171221319 is about 1054.0947646217.

The spelling of 1171221319 in words is "one billion, one hundred seventy-one million, two hundred twenty-one thousand, three hundred nineteen".